feat: redesign calendar detail for reading

This reverts commit 6e3e09e8b6.

backend/backup/archive.py

@@ -152,6 +152,18 @@ def parse_archive_path(path: Path, *, max_archive_bytes: int = MAX_ARCHIVE_BYTES
             content_names = set(names) - {"manifest.json"}
             if set(checksums) != content_names:
                 raise backup_error("backup_manifest_mismatch", "manifest 与 ZIP 条目不一致")
+            # Calendar subscriptions are an additive backup-v2 entity. Accept archives
+            # produced by older helpers that checksum the new file but omit its count.
+            optional_entities = {"calendar_subscriptions"}
+            undeclared_optional = {
+                f"data/{name}.json" for name in optional_entities - set(declared_entities)
+            }
+            if set(declared_entities) != {
+                name[5:-5]
+                for name in content_names - undeclared_optional
+                if name.startswith("data/") and name.endswith(".json")
+            }:
+                raise backup_error("backup_manifest_mismatch", "manifest 实体清单不一致")
             entities: dict[str, list[dict]] = {}
             files: dict[str, StagedBlob] = {}
             for index, name in enumerate(sorted(content_names)):
@@ -170,7 +182,11 @@ def parse_archive_path(path: Path, *, max_archive_bytes: int = MAX_ARCHIVE_BYTES
                 if not isinstance(checksums[name], str) or actual_digest != checksums[name]:
                     raise backup_error("backup_checksum_mismatch", "备份校验和不匹配")
             if set(declared_entities) != set(entities):
-                raise backup_error("backup_manifest_mismatch", "manifest 实体清单不一致")
+                required_declared = set(entities) - optional_entities
+                if set(declared_entities) != required_declared or any(
+                    entities.get(name) for name in optional_entities - set(declared_entities)
+                ):
+                    raise backup_error("backup_manifest_mismatch", "manifest 实体清单不一致")
             if any(type(count) is not int or count < 0 or count != len(entities[name]) for name, count in declared_entities.items()):
                 raise backup_error("backup_manifest_mismatch", "manifest 实体数量不一致")
     except HTTPException:

backend/backup/service.py

@@ -19,6 +19,7 @@ from backend.models import (
     BackupImport,
     BackupImportEntity,
     BackupPreflight,
+    CalendarSubscription,
     Countdown,
     Folder,
     Habit,
@@ -65,6 +66,7 @@ ENTITY_MODELS = {
     "habit_pauses": HabitPause,
     "countdowns": Countdown,
     "memos": Memo,
+    "calendar_subscriptions": CalendarSubscription,
     "attachments": Attachment,
 }
 RELATIONS = {
@@ -352,6 +354,9 @@ def _validate_recurrence_graph(parsed: ParsedArchive) -> None:
                 "rrule": row.get("rrule"),
                 "trigger_mode": row.get("trigger_mode", "scheduled"),
                 "after_completion_days": row.get("after_completion_days"),
+                "after_completion_unit": row.get("after_completion_unit")
+                if row.get("trigger_mode", "scheduled") == "after_completion"
+                else None,
             })
             starts_at = datetime.fromisoformat(row["starts_at"])
             ends_at = datetime.fromisoformat(row["ends_at"]) if row.get("ends_at") else None
@@ -392,6 +397,9 @@ def _validate_recurrence_graph(parsed: ParsedArchive) -> None:
 
 def validate_archive(parsed: ParsedArchive) -> None:
     unknown = set(parsed.entities) - set(ENTITY_MODELS)
+    # Calendar subscriptions were introduced after backup v2. Treat their
+    # absence as an empty collection so archives from older Dodo releases remain restorable.
+    parsed.entities.setdefault("calendar_subscriptions", [])
     missing = set(ENTITY_MODELS) - set(parsed.entities)
     if unknown:
         raise backup_error("backup_entity_unknown", "备份包含未知实体")
@@ -518,6 +526,8 @@ def _coerce(model, raw: dict, mapping: dict[str, dict[str, UUID]], user_id: UUID
                 elif isinstance(effective_type, Date) and isinstance(value, str):
                     value = date.fromisoformat(value)
             values[name] = value
+    if model is RecurrenceTemplate and "after_completion_unit" not in raw:
+        values["after_completion_unit"] = "days" if raw.get("trigger_mode") == "after_completion" else None
     return values
 
 
@@ -611,7 +621,16 @@ async def restore_v2(
             await db.execute(delete(HabitPause).where(
                 HabitPause.habit_id.in_(select(Habit.id).where(Habit.user_id == user.id))
             ))
-            for model in (Attachment, Memo, Countdown, Task, Habit, TaskList, Folder):
+            for model in (
+                Attachment,
+                CalendarSubscription,
+                Memo,
+                Countdown,
+                Task,
+                Habit,
+                TaskList,
+                Folder,
+            ):
                 await db.execute(delete(model).where(model.user_id == user.id))
             await db.execute(delete(BackupImportEntity).where(BackupImportEntity.user_id == user.id))
             await db.execute(delete(BackupImport).where(BackupImport.user_id == user.id))

backend/calendar.py

@@ -0,0 +1,254 @@
+from __future__ import annotations
+
+import http.client
+import ipaddress
+import socket
+import ssl
+import urllib.parse
+from dataclasses import dataclass
+from datetime import UTC, date, datetime, time, timedelta
+from itertools import islice
+from typing import Any
+from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
+
+from dateutil.rrule import rrulestr
+from fastapi import HTTPException
+from icalendar import Calendar
+
+MAX_ICS_BYTES = 2_000_000
+MAX_REDIRECTS = 3
+DEFAULT_RECURRENCE_LIMIT = 10_000
+MAX_DESCRIPTION_LENGTH = 2_000
+MAX_LOCATION_LENGTH = 500
+TIMEOUT_SECONDS = 10
+_ALLOWED_CONTENT_TYPES = {"text/calendar", "text/plain", "application/octet-stream"}
+
+
+@dataclass(frozen=True)
+class FetchResult:
+    content: bytes | None
+    etag: str | None
+    last_modified: str | None
+    not_modified: bool
+
+
+def _is_global(value: str) -> bool:
+    return ipaddress.ip_address(value.split("%", 1)[0]).is_global
+
+
+def validate_calendar_url(url: str) -> tuple[str, str, int]:
+    try:
+        parsed = urllib.parse.urlsplit(url)
+        port = parsed.port or (443 if parsed.scheme == "https" else 80)
+    except ValueError as exc:
+        raise HTTPException(422, "invalid calendar URL") from exc
+    if (
+        parsed.scheme not in {"http", "https"}
+        or not parsed.hostname
+        or parsed.username is not None
+        or parsed.password is not None
+        or parsed.fragment
+    ):
+        raise HTTPException(422, "calendar URL must be HTTP(S) without userinfo or fragment")
+    try:
+        infos = socket.getaddrinfo(parsed.hostname, port, type=socket.SOCK_STREAM)
+    except socket.gaierror as exc:
+        raise HTTPException(422, "calendar host cannot be resolved") from exc
+    addresses = {item[4][0] for item in infos}
+    if not addresses or not all(_is_global(address) for address in addresses):
+        raise HTTPException(422, "calendar host must resolve only to public addresses")
+    return url, min(addresses), port
+
+
+def _request(url: str, headers: dict[str, str]) -> tuple[int, list[tuple[str, str]], str, bytes]:
+    _, ip, port = validate_calendar_url(url)
+    parsed = urllib.parse.urlsplit(url)
+    target = f"[{ip}]" if ":" in ip else ip
+    host = parsed.hostname or ""
+    if parsed.port:
+        host = f"{host}:{parsed.port}"
+    request_headers = {"Host": host, "User-Agent": "dodo-calendar-fetch/1.0", **headers}
+    path = urllib.parse.urlunsplit(("", "", parsed.path or "/", parsed.query, ""))
+    connection: http.client.HTTPConnection
+    if parsed.scheme == "https":
+        connection = http.client.HTTPSConnection(target, port=port, timeout=TIMEOUT_SECONDS)
+    else:
+        connection = http.client.HTTPConnection(target, port=port, timeout=TIMEOUT_SECONDS)
+    try:
+        if parsed.scheme == "https":
+            raw = socket.create_connection((ip, port), timeout=TIMEOUT_SECONDS)
+            connection.sock = ssl.create_default_context().wrap_socket(
+                raw, server_hostname=parsed.hostname
+            )
+        connection.request("GET", path, headers=request_headers)
+        response = connection.getresponse()
+        length = response.getheader("Content-Length")
+        if length and int(length) > MAX_ICS_BYTES:
+            raise HTTPException(413, "calendar exceeds 2MB")
+        body = response.read(MAX_ICS_BYTES + 1)
+        return response.status, response.getheaders(), response.getheader("Content-Type") or "", body
+    except HTTPException:
+        raise
+    except (OSError, http.client.HTTPException, ValueError) as exc:
+        raise HTTPException(502, "calendar upstream unavailable") from exc
+    finally:
+        connection.close()
+
+
+def fetch_calendar(url: str, *, etag: str | None = None, last_modified: str | None = None) -> FetchResult:
+    headers = {}
+    if etag:
+        headers["If-None-Match"] = etag
+    if last_modified:
+        headers["If-Modified-Since"] = last_modified
+    current = url
+    for redirect_count in range(MAX_REDIRECTS + 1):
+        status, response_headers, content_type, body = _request(current, headers)
+        header_map = {key.lower(): value for key, value in response_headers}
+        if status in {301, 302, 303, 307, 308}:
+            if redirect_count == MAX_REDIRECTS or not header_map.get("location"):
+                raise HTTPException(502, "calendar redirect limit exceeded")
+            current = urllib.parse.urljoin(current, header_map["location"])
+            validate_calendar_url(current)
+            continue
+        if status == 304:
+            return FetchResult(None, etag, last_modified, True)
+        if status >= 400:
+            raise HTTPException(502, f"calendar upstream returned HTTP {status}")
+        if len(body) > MAX_ICS_BYTES:
+            raise HTTPException(413, "calendar exceeds 2MB")
+        if content_type.split(";", 1)[0].lower() not in _ALLOWED_CONTENT_TYPES:
+            raise HTTPException(422, "URL did not return an iCalendar document")
+        return FetchResult(body, header_map.get("etag"), header_map.get("last-modified"), False)
+    raise HTTPException(502, "calendar redirect limit exceeded")
+
+
+def _localize(value: date | datetime, timezone: ZoneInfo) -> tuple[datetime, bool]:
+    if isinstance(value, datetime):
+        return (value if value.tzinfo else value.replace(tzinfo=timezone)), False
+    return datetime.combine(value, time.min, tzinfo=timezone), True
+
+
+def _utc(value: date | datetime, timezone: ZoneInfo) -> tuple[datetime, bool]:
+    localized, all_day = _localize(value, timezone)
+    return localized.astimezone(UTC), all_day
+
+
+def _duration(event: Any, starts_at: datetime, all_day: bool, timezone: ZoneInfo) -> timedelta:
+    if event.get("dtend"):
+        ends_at, _ = _utc(event.decoded("dtend"), timezone)
+        return max(ends_at - starts_at, timedelta())
+    if event.get("duration"):
+        return event.decoded("duration")
+    return timedelta(days=1) if all_day else timedelta(hours=1)
+
+
+def _exdates(event: Any, timezone: ZoneInfo) -> set[datetime]:
+    values = event.get("exdate")
+    if not values:
+        return set()
+    excluded = set()
+    for item in values if isinstance(values, list) else [values]:
+        for value in getattr(item, "dts", []):
+            excluded.add(_utc(value.dt, timezone)[0])
+    return excluded
+
+
+def _overlaps(start: datetime, end: datetime, window_start: datetime, window_end: datetime) -> bool:
+    return start < window_end and end > window_start
+
+
+def _event_dict(event: Any, source_id: str, source: str, color: str, start: datetime, end: datetime, all_day: bool) -> dict:
+    uid = str(event.get("uid") or "")
+    title = str(event.get("summary") or "Untitled event").strip() or "Untitled event"
+    description = str(event.get("description") or "").strip()[:MAX_DESCRIPTION_LENGTH]
+    location = str(event.get("location") or "").strip()[:MAX_LOCATION_LENGTH]
+    return {
+        "id": f"{uid or title}:{start.isoformat()}",
+        "title": title,
+        "description": description or None,
+        "location": location or None,
+        "starts_at": start,
+        "ends_at": end,
+        "all_day": all_day,
+        "source_id": source_id,
+        "source_name": source,
+        "color": color,
+    }
+
+
+def parse_ics_events(
+    content: bytes | str,
+    source_name: str,
+    color: str,
+    window_start: datetime,
+    window_end: datetime,
+    timezone_name: str,
+    *,
+    source_id: str = "",
+    recurrence_limit: int = DEFAULT_RECURRENCE_LIMIT,
+) -> list[dict]:
+    try:
+        timezone = ZoneInfo(timezone_name)
+    except ZoneInfoNotFoundError as exc:
+        raise ValueError("invalid timezone") from exc
+    try:
+        calendar = Calendar.from_ical(content)
+    except Exception as exc:
+        raise ValueError("invalid iCalendar document") from exc
+    components = list(calendar.walk("VEVENT"))
+    master_durations = {}
+    for event in components:
+        if event.get("dtstart") and not event.get("recurrence-id"):
+            master_start, master_all_day = _utc(event.decoded("dtstart"), timezone)
+            master_durations[str(event.get("uid") or "")] = _duration(
+                event, master_start, master_all_day, timezone
+            )
+    overrides = {}
+    for event in components:
+        recurrence_id = event.get("recurrence-id")
+        if recurrence_id:
+            overrides[(str(event.get("uid") or ""), _utc(event.decoded("recurrence-id"), timezone)[0])] = event
+    events = []
+    for event in components:
+        if not event.get("dtstart") or event.get("recurrence-id") or str(event.get("status") or "").upper() == "CANCELLED":
+            continue
+        local_start, all_day = _localize(event.decoded("dtstart"), timezone)
+        start = local_start.astimezone(UTC)
+        duration = _duration(event, start, all_day, timezone)
+        uid = str(event.get("uid") or "")
+        if event.get("rrule"):
+            try:
+                rule = rrulestr(event.get("rrule").to_ical().decode(), dtstart=local_start)
+                bounded = rule.xafter(window_start - duration, count=recurrence_limit + 1, inc=True)
+                occurrences = [item for item in islice(bounded, recurrence_limit + 1) if item < window_end]
+            except Exception as exc:
+                raise ValueError("invalid recurrence rule") from exc
+            if len(occurrences) > recurrence_limit:
+                raise ValueError("recurrence limit exceeded")
+            excluded = _exdates(event, timezone)
+            for occurrence in occurrences:
+                occurrence = (occurrence if occurrence.tzinfo else occurrence.replace(tzinfo=timezone)).astimezone(UTC)
+                if occurrence in excluded or (uid, occurrence) in overrides:
+                    continue
+                end = occurrence + duration
+                if _overlaps(occurrence, end, window_start, window_end):
+                    events.append(_event_dict(event, source_id, source_name, color, occurrence, end, all_day))
+        else:
+            end = start + duration
+            if _overlaps(start, end, window_start, window_end):
+                events.append(_event_dict(event, source_id, source_name, color, start, end, all_day))
+    for event in overrides.values():
+        if not event.get("dtstart") or str(event.get("status") or "").upper() == "CANCELLED":
+            continue
+        start, all_day = _utc(event.decoded("dtstart"), timezone)
+        uid = str(event.get("uid") or "")
+        duration = (
+            _duration(event, start, all_day, timezone)
+            if event.get("dtend") or event.get("duration")
+            else master_durations.get(uid, timedelta(days=1) if all_day else timedelta(hours=1))
+        )
+        end = start + duration
+        if _overlaps(start, end, window_start, window_end):
+            events.append(_event_dict(event, source_id, source_name, color, start, end, all_day))
+    return sorted(events, key=lambda item: (item["starts_at"], item["title"], item["id"]))

backend/calendar_refresh.py

@@ -0,0 +1,114 @@
+from __future__ import annotations
+
+import asyncio
+import logging
+from collections.abc import Callable
+from datetime import UTC, datetime, timedelta
+
+from fastapi import HTTPException
+from sqlalchemy import or_, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from . import calendar as calendar_service
+from .models import CalendarSubscription
+
+logger = logging.getLogger(__name__)
+DEFAULT_REFRESH_INTERVAL = timedelta(minutes=15)
+DEFAULT_POLL_SECONDS = 60
+
+
+async def refresh_subscription_cache(
+    db: AsyncSession,
+    row: CalendarSubscription,
+    *,
+    fail_without_cache: bool = True,
+    attempted_at: datetime | None = None,
+) -> bool:
+    attempt_time = attempted_at or datetime.now(UTC)
+    requested_url = row.url
+    requested_version = getattr(row, "updated_at", None)
+    try:
+        result = await asyncio.to_thread(
+            calendar_service.fetch_calendar,
+            requested_url,
+            etag=row.etag,
+            last_modified=row.last_modified,
+        )
+        await db.refresh(row)
+        if row.url != requested_url or getattr(row, "updated_at", None) != requested_version:
+            return False
+        if result.not_modified:
+            if not row.ics_cache:
+                raise HTTPException(502, "calendar returned not modified without cache")
+        elif result.content is not None:
+            # Parse before replacing a known-good cache.
+            calendar_service.parse_ics_events(
+                result.content,
+                row.name,
+                row.color,
+                datetime.now(UTC) - timedelta(days=1),
+                datetime.now(UTC) + timedelta(days=1),
+                "UTC",
+            )
+            row.ics_cache = result.content.decode("utf-8-sig")
+            row.etag = result.etag
+            row.last_modified = result.last_modified
+        row.refreshed_at = attempt_time
+        row.updated_at = attempt_time
+        row.last_error = None
+        await db.commit()
+        return True
+    except Exception as exc:
+        error = exc.detail if isinstance(exc, HTTPException) else str(exc)
+        if not row.ics_cache and fail_without_cache:
+            await db.rollback()
+            raise HTTPException(502, error) from exc
+        row.last_error = error
+        row.updated_at = attempt_time
+        await db.commit()
+        return False
+
+
+async def refresh_due_subscriptions(
+    db: AsyncSession,
+    *,
+    now: datetime | None = None,
+    refresh_interval: timedelta = DEFAULT_REFRESH_INTERVAL,
+) -> int:
+    current = now or datetime.now(UTC)
+    cutoff = current - refresh_interval
+    rows = (await db.scalars(select(CalendarSubscription).where(
+        CalendarSubscription.enabled.is_(True),
+        or_(
+            CalendarSubscription.updated_at.is_(None),
+            CalendarSubscription.updated_at <= cutoff,
+        ),
+    ).order_by(CalendarSubscription.refreshed_at, CalendarSubscription.created_at))).all()
+    for row in rows:
+        try:
+            await refresh_subscription_cache(
+                db, row, fail_without_cache=False, attempted_at=current
+            )
+        except Exception:
+            await db.rollback()
+            logger.exception("Unexpected calendar refresh failure", extra={"subscription_id": str(row.id)})
+    return len(rows)
+
+
+async def calendar_refresh_loop(
+    session_factory: Callable[[], AsyncSession],
+    stop_event: asyncio.Event,
+    *,
+    refresh_interval: timedelta = DEFAULT_REFRESH_INTERVAL,
+    poll_seconds: int = DEFAULT_POLL_SECONDS,
+) -> None:
+    while not stop_event.is_set():
+        try:
+            async with session_factory() as db:
+                await refresh_due_subscriptions(db, refresh_interval=refresh_interval)
+        except Exception:
+            logger.exception("Calendar background refresh cycle failed")
+        try:
+            await asyncio.wait_for(stop_event.wait(), timeout=poll_seconds)
+        except TimeoutError:
+            pass

backend/calendar_router.py

@@ -0,0 +1,194 @@
+from datetime import datetime, timedelta
+from uuid import UUID
+from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
+
+from fastapi import APIRouter, Depends, HTTPException, Query, Response
+from pydantic import BaseModel, ConfigDict, Field, field_validator, model_validator
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from . import calendar as calendar_service
+from .auth import current_user
+from .calendar_refresh import refresh_subscription_cache
+from .db import get_db
+from .models import CalendarSubscription, User
+
+router = APIRouter(prefix="/api/v1", tags=["calendar"])
+MAX_WINDOW = timedelta(days=366)
+
+
+class SubscriptionCreate(BaseModel):
+    name: str = Field(min_length=1, max_length=120)
+    url: str = Field(min_length=1, max_length=2000)
+    color: str = Field(default="#f15a29", pattern=r"^#[0-9A-Fa-f]{6}$")
+    enabled: bool = True
+
+    @field_validator("name")
+    @classmethod
+    def clean_name(cls, value: str) -> str:
+        value = value.strip()
+        if not value:
+            raise ValueError("name cannot be blank")
+        return value
+
+
+class SubscriptionUpdate(BaseModel):
+    name: str | None = Field(default=None, min_length=1, max_length=120)
+    url: str | None = Field(default=None, min_length=1, max_length=2000)
+    color: str | None = Field(default=None, pattern=r"^#[0-9A-Fa-f]{6}$")
+    enabled: bool | None = None
+
+    @field_validator("name")
+    @classmethod
+    def clean_name(cls, value: str | None) -> str | None:
+        if value is None:
+            return None
+        value = value.strip()
+        if not value:
+            raise ValueError("name cannot be blank")
+        return value
+
+    @model_validator(mode="after")
+    def reject_nulls(self):
+        for field in self.model_fields_set:
+            if getattr(self, field) is None:
+                raise ValueError(f"{field} cannot be null")
+        return self
+
+
+class SubscriptionOut(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+    id: UUID
+    name: str
+    url: str
+    color: str
+    enabled: bool
+    refreshed_at: datetime | None
+    last_error: str | None
+    stale: bool
+
+
+def _out(row: CalendarSubscription) -> dict:
+    return {
+        "id": row.id,
+        "name": row.name,
+        "url": row.url,
+        "color": row.color,
+        "enabled": row.enabled,
+        "refreshed_at": row.refreshed_at,
+        "last_error": row.last_error,
+        "stale": bool(row.last_error and row.ics_cache),
+    }
+
+
+async def _owned(db: AsyncSession, user_id: UUID, subscription_id: UUID) -> CalendarSubscription:
+    row = await db.scalar(select(CalendarSubscription).where(
+        CalendarSubscription.id == subscription_id,
+        CalendarSubscription.user_id == user_id,
+    ))
+    if row is None:
+        raise HTTPException(404, "calendar subscription not found")
+    return row
+
+
+@router.get("/calendar-subscriptions", response_model=list[SubscriptionOut])
+async def list_subscriptions(user: User = Depends(current_user), db: AsyncSession = Depends(get_db)):
+    rows = (await db.scalars(select(CalendarSubscription).where(
+        CalendarSubscription.user_id == user.id
+    ).order_by(CalendarSubscription.created_at, CalendarSubscription.id))).all()
+    return [_out(row) for row in rows]
+
+
+@router.post("/calendar-subscriptions", response_model=SubscriptionOut, status_code=201)
+async def create_subscription(
+    payload: SubscriptionCreate,
+    user: User = Depends(current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    calendar_service.validate_calendar_url(payload.url)
+    row = CalendarSubscription(user_id=user.id, **payload.model_dump())
+    db.add(row)
+    await db.flush()
+    await refresh_subscription_cache(db, row)
+    await db.refresh(row)
+    return _out(row)
+
+
+@router.patch("/calendar-subscriptions/{subscription_id}", response_model=SubscriptionOut)
+async def update_subscription(
+    subscription_id: UUID,
+    payload: SubscriptionUpdate,
+    user: User = Depends(current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    row = await _owned(db, user.id, subscription_id)
+    changes = payload.model_dump(exclude_unset=True)
+    if "url" in changes:
+        calendar_service.validate_calendar_url(changes["url"])
+        if changes["url"] != row.url:
+            row.ics_cache = row.etag = row.last_modified = row.refreshed_at = row.last_error = None
+    for key, value in changes.items():
+        setattr(row, key, value)
+    await db.commit()
+    await db.refresh(row)
+    return _out(row)
+
+
+@router.delete("/calendar-subscriptions/{subscription_id}", status_code=204)
+async def delete_subscription(
+    subscription_id: UUID,
+    user: User = Depends(current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    row = await _owned(db, user.id, subscription_id)
+    await db.delete(row)
+    await db.commit()
+    return Response(status_code=204)
+
+
+@router.post("/calendar-subscriptions/{subscription_id}/refresh", response_model=SubscriptionOut)
+async def refresh_subscription(
+    subscription_id: UUID,
+    user: User = Depends(current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    row = await _owned(db, user.id, subscription_id)
+    await refresh_subscription_cache(db, row)
+    await db.refresh(row)
+    return _out(row)
+
+
+@router.get("/calendar-events")
+async def calendar_events(
+    start: datetime = Query(),
+    end: datetime = Query(),
+    user: User = Depends(current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    if start.tzinfo is None or end.tzinfo is None or end <= start or end - start > MAX_WINDOW:
+        raise HTTPException(422, "start/end must be timezone-aware and span at most 366 days")
+    try:
+        ZoneInfo(user.timezone)
+    except ZoneInfoNotFoundError as exc:
+        raise HTTPException(422, "user timezone is invalid") from exc
+    rows = (await db.scalars(select(CalendarSubscription).where(
+        CalendarSubscription.user_id == user.id,
+        CalendarSubscription.enabled.is_(True),
+    ).order_by(CalendarSubscription.created_at, CalendarSubscription.id))).all()
+    events = []
+    sources = []
+    for row in rows:
+        if not row.ics_cache:
+            await refresh_subscription_cache(db, row)
+        try:
+            parsed = calendar_service.parse_ics_events(
+                row.ics_cache or "", row.name, row.color, start, end, user.timezone,
+                source_id=str(row.id),
+            )
+            events.extend(parsed)
+        except ValueError as exc:
+            row.last_error = str(exc)
+            await db.commit()
+        sources.append({"id": row.id, "name": row.name, "stale": bool(row.last_error)})
+    events.sort(key=lambda item: (item["starts_at"], item["title"], item["id"]))
+    return {"events": events, "sources": sources}

backend/db.py

@@ -22,6 +22,12 @@ def get_engine():
     return _engine
 
 
+def get_session_factory() -> async_sessionmaker[AsyncSession]:
+    get_engine()
+    assert _session_factory is not None
+    return _session_factory
+
+
 def reset_engine() -> None:
     global _engine, _session_factory
     _engine = None
@@ -29,9 +35,7 @@ def reset_engine() -> None:
 
 
 async def get_db() -> AsyncIterator[AsyncSession]:
-    get_engine()
-    assert _session_factory is not None
-    async with _session_factory() as session:
+    async with get_session_factory()() as session:
         yield session
 
 

backend/main.py

@@ -1,3 +1,4 @@
+import asyncio
 import base64
 import json
 import logging
@@ -30,7 +31,9 @@ from .auth import (
     verify_password,
 )
 from .backup import router as backup_router
-from .db import create_schema, get_db
+from .calendar_refresh import calendar_refresh_loop
+from .calendar_router import router as calendar_router
+from .db import create_schema, get_db, get_session_factory
 from .models import (
     AppState,
     Attachment,
@@ -79,7 +82,19 @@ async def lifespan(app: FastAPI):
 
     if get_settings().auto_create_schema:
         await create_schema()
-    yield
+    stop_calendar_refresh = asyncio.Event()
+    calendar_refresh_task = asyncio.create_task(
+        calendar_refresh_loop(get_session_factory(), stop_calendar_refresh)
+    )
+    try:
+        yield
+    finally:
+        stop_calendar_refresh.set()
+        calendar_refresh_task.cancel()
+        try:
+            await calendar_refresh_task
+        except asyncio.CancelledError:
+            pass
 
 
 app = FastAPI(
@@ -120,6 +135,7 @@ async def openapi(_: User = Depends(current_user)):
 
 app.include_router(mvp_router)
 app.include_router(backup_router)
+app.include_router(calendar_router)
 logger = logging.getLogger(__name__)
 _login_attempts: dict[tuple[str, str], deque[float]] = defaultdict(deque)
 
@@ -997,7 +1013,7 @@ async def create_task(
         from .mvp import parse_rrule
         if payload.rrule:
             parse_rrule(payload.rrule)
-    data = payload.model_dump(exclude={"rrule", "trigger_mode", "after_completion_days"})
+    data = payload.model_dump(exclude={"rrule", "trigger_mode", "after_completion_days", "after_completion_unit"})
     parent_filter = Task.parent_id == payload.parent_id if payload.parent_id else Task.parent_id.is_(None)
     max_position = await db.scalar(select(func.max(Task.position)).where(
         Task.user_id == user.id,
@@ -1017,6 +1033,9 @@ async def create_task(
                 starts_at=task.due_at,
                 trigger_mode=payload.trigger_mode or "scheduled",
                 after_completion_days=payload.after_completion_days,
+                after_completion_unit=(payload.after_completion_unit or "days")
+                if payload.trigger_mode == "after_completion"
+                else None,
             )
         )
     audit(db, user.id, "create", "task", task.id)
@@ -1086,22 +1105,22 @@ async def list_tasks(
     return TaskPage(items=await _task_details(db, items), next_cursor=next_cursor, total=total, page=1, page_size=limit)
 
 
-async def _task_details(db: AsyncSession, tasks: list[Task]) -> list[TaskDetailOut]:
+async def _task_details(
+    db: AsyncSession,
+    tasks: list[Task],
+    *,
+    include_deleted_subtasks: bool = False,
+) -> list[TaskDetailOut]:
     if not tasks:
         return []
     allowed_scopes = {(task.id, task.user_id, task.list_id) for task in tasks}
-    subtasks = list(
-        (
-            await db.scalars(
-                select(Task)
-                .where(
-                    tuple_(Task.parent_id, Task.user_id, Task.list_id).in_(allowed_scopes),
-                    Task.deleted_at.is_(None),
-                )
-                .order_by(*_task_ordering())
-            )
-        ).all()
+    subtask_query = select(Task).where(
+        tuple_(Task.parent_id, Task.user_id, Task.list_id).in_(allowed_scopes)
     )
+    subtask_query = subtask_query.where(
+        Task.deleted_at.is_not(None) if include_deleted_subtasks else Task.deleted_at.is_(None)
+    )
+    subtasks = list((await db.scalars(subtask_query.order_by(*_task_ordering()))).all())
     subtasks_by_task: dict[UUID, list[Task]] = defaultdict(list)
     for subtask in subtasks:
         if (subtask.parent_id, subtask.user_id, subtask.list_id) in allowed_scopes:
@@ -1252,11 +1271,17 @@ async def list_trash(
         Task.user_id == user.id, Task.deleted_at.is_not(None), Task.parent_id.is_(None)
     )
     total = await db.scalar(select(func.count()).select_from(query.order_by(None).subquery())) or 0
-    ordering = (Task.created_at, Task.id)
+    grouping_rank = case(
+        (Task.due_at < utcnow(), 0),
+        (Task.due_at.is_not(None), 1),
+        else_=2,
+    )
     if page is not None:
         size = page_size or limit
-        items = list((await db.scalars(query.order_by(*ordering).offset((page - 1) * size).limit(size))).all())
-        return TaskPage(items=await _task_details(db, items), total=total, page=page, page_size=size)
+        page_ordering = (grouping_rank, Task.due_at, Task.created_at, Task.id)
+        items = list((await db.scalars(query.order_by(*page_ordering).offset((page - 1) * size).limit(size))).all())
+        return TaskPage(items=await _task_details(db, items, include_deleted_subtasks=True), total=total, page=page, page_size=size)
+    ordering = (Task.created_at, Task.id)
     if cursor:
         created_at, task_id = _decode_trash_cursor(cursor)
         query = query.where(
@@ -1266,7 +1291,7 @@ async def list_trash(
     has_more = len(rows) > limit
     items = rows[:limit]
     next_cursor = _encode_trash_cursor(items[-1].created_at, items[-1].id) if has_more else None
-    return TaskPage(items=await _task_details(db, items), next_cursor=next_cursor, total=total, page=1, page_size=limit)
+    return TaskPage(items=await _task_details(db, items, include_deleted_subtasks=True), next_cursor=next_cursor, total=total, page=1, page_size=limit)
 
 
 @app.post("/api/v1/tasks/{task_id}/restore", response_model=TaskDetailOut)

backend/models.py

@@ -154,6 +154,7 @@ class RecurrenceTemplate(Base):
     ends_at: Mapped[datetime | None] = mapped_column(UTCDateTime(), nullable=True)
     trigger_mode: Mapped[str] = mapped_column(String(32), default="scheduled")
     after_completion_days: Mapped[int | None] = mapped_column(Integer, nullable=True)
+    after_completion_unit: Mapped[str | None] = mapped_column(String(8), nullable=True)
     last_completed_at: Mapped[datetime | None] = mapped_column(UTCDateTime(), nullable=True)
     created_at: Mapped[datetime] = mapped_column(UTCDateTime(), default=utcnow)
 
@@ -301,6 +302,23 @@ class BackupImportEntity(Base):
     created_at: Mapped[datetime] = mapped_column(UTCDateTime(), default=utcnow)
 
 
+class CalendarSubscription(Base):
+    __tablename__ = "calendar_subscriptions"
+    id: Mapped[UUID] = mapped_column(primary_key=True, default=new_id)
+    user_id: Mapped[UUID] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"), index=True)
+    name: Mapped[str] = mapped_column(String(120))
+    url: Mapped[str] = mapped_column(Text)
+    color: Mapped[str] = mapped_column(String(32), default="#f15a29")
+    enabled: Mapped[bool] = mapped_column(Boolean, default=True)
+    ics_cache: Mapped[str | None] = mapped_column(Text, nullable=True)
+    etag: Mapped[str | None] = mapped_column(String(512), nullable=True)
+    last_modified: Mapped[str | None] = mapped_column(String(512), nullable=True)
+    refreshed_at: Mapped[datetime | None] = mapped_column(UTCDateTime(), nullable=True)
+    last_error: Mapped[str | None] = mapped_column(Text, nullable=True)
+    created_at: Mapped[datetime] = mapped_column(UTCDateTime(), default=utcnow)
+    updated_at: Mapped[datetime] = mapped_column(UTCDateTime(), default=utcnow, onupdate=utcnow)
+
+
 class AuditLog(Base):
     __tablename__ = "audit_logs"
     id: Mapped[UUID] = mapped_column(primary_key=True, default=new_id)

backend/mvp.py

@@ -251,17 +251,22 @@ class RecurrenceCreate(BaseModel):
     rrule: str | None = Field(default=None, min_length=5, max_length=1000)
     trigger_mode: str = Field(default="scheduled", pattern="^(scheduled|after_completion)$")
     after_completion_days: int | None = Field(default=None, ge=1, le=3650)
+    after_completion_unit: str | None = Field(default=None, pattern="^(days|months)$")
 
     @model_validator(mode="after")
     def validate_mode(self):
         if self.trigger_mode == "scheduled" and (
-            self.rrule is None or self.after_completion_days is not None
+            self.rrule is None
+            or self.after_completion_days is not None
+            or self.after_completion_unit is not None
         ):
             raise ValueError("scheduled recurrence requires rrule and no completion interval")
         if self.trigger_mode == "after_completion" and (
             self.after_completion_days is None or self.rrule is not None
         ):
             raise ValueError("after_completion requires days and no rrule")
+        if self.trigger_mode == "after_completion" and self.after_completion_unit is None:
+            self.after_completion_unit = "days"
         return self
 
 
@@ -271,6 +276,7 @@ class RecurrenceChange(BaseModel):
     rrule: str | None = None
     trigger_mode: str | None = Field(default=None, pattern="^(scheduled|after_completion)$")
     after_completion_days: int | None = Field(default=None, ge=1, le=3650)
+    after_completion_unit: str | None = Field(default=None, pattern="^(days|months)$")
 
 
 class OccurrenceComplete(BaseModel):
@@ -430,6 +436,7 @@ async def get_task_recurrence(task_id: UUID, user: User = Depends(current_user),
         "ends_at": row.ends_at,
         "trigger_mode": row.trigger_mode,
         "after_completion_days": row.after_completion_days,
+        "after_completion_unit": row.after_completion_unit,
         "last_completed_at": row.last_completed_at,
     }
 
@@ -452,6 +459,9 @@ async def create_recurrence(payload: RecurrenceCreate, user: User = Depends(curr
         starts_at=task.due_at,
         trigger_mode=payload.trigger_mode,
         after_completion_days=payload.after_completion_days,
+        after_completion_unit=(payload.after_completion_unit or "days")
+        if payload.trigger_mode == "after_completion"
+        else None,
     )
     db.add(row)
     await db.commit(); await db.refresh(row)
@@ -463,6 +473,7 @@ async def create_recurrence(payload: RecurrenceCreate, user: User = Depends(curr
         "ends_at": row.ends_at,
         "trigger_mode": row.trigger_mode,
         "after_completion_days": row.after_completion_days,
+        "after_completion_unit": row.after_completion_unit,
         "last_completed_at": row.last_completed_at,
     }
 
@@ -504,12 +515,18 @@ async def edit_recurrence(recurrence_id: UUID, payload: RecurrenceChange, scope:
             if "after_completion_days" in payload.model_fields_set
             else template.after_completion_days
         )
+        requested_unit = (
+            payload.after_completion_unit
+            if "after_completion_unit" in payload.model_fields_set
+            else template.after_completion_unit
+        )
         requested_rrule = payload.rrule if payload.rrule is not None else template.rrule
         if requested_mode == "after_completion":
             if requested_days is None:
                 raise HTTPException(422, "完成后重复需要间隔天数")
             template.trigger_mode = requested_mode
             template.after_completion_days = requested_days
+            template.after_completion_unit = requested_unit or "days"
             template.rrule = None
         else:
             if requested_rrule is None:
@@ -517,6 +534,7 @@ async def edit_recurrence(recurrence_id: UUID, payload: RecurrenceChange, scope:
             parse_rrule(requested_rrule)
             template.trigger_mode = requested_mode
             template.after_completion_days = None
+            template.after_completion_unit = None
             template.rrule = requested_rrule.upper()
         if payload.title is not None:
             task.title = payload.title
@@ -533,6 +551,7 @@ async def edit_recurrence(recurrence_id: UUID, payload: RecurrenceChange, scope:
         "ends_at": template.ends_at,
         "trigger_mode": template.trigger_mode,
         "after_completion_days": template.after_completion_days,
+        "after_completion_unit": template.after_completion_unit,
         "last_completed_at": template.last_completed_at,
     }
 
@@ -1358,7 +1377,7 @@ def _export_payload(folders, lists, tasks, recurrences, habits, countdowns, memo
         "folders": [serialize(x, ["id", "name", "position", "deleted_at"]) for x in folders],
         "lists": [serialize(x, ["id", "folder_id", "name", "is_inbox", "position", "deleted_at"]) for x in lists],
         "tasks": [serialize(x, ["id", "list_id", "parent_id", "title", "description", "priority", "completed", "completed_at", "due_at", "due_has_time", "external_id", "deleted_at"]) for x in tasks],
-        "recurrences": [serialize(x, ["id", "task_id", "rrule", "starts_at", "ends_at", "trigger_mode", "after_completion_days", "last_completed_at"]) for x in recurrences],
+        "recurrences": [serialize(x, ["id", "task_id", "rrule", "starts_at", "ends_at", "trigger_mode", "after_completion_days", "after_completion_unit", "last_completed_at"]) for x in recurrences],
         "habits": [serialize(x, ["id", "name", "kind", "target", "max_value", "schedule_type", "weekdays", "month_days", "interval_days", "start_date", "archived_at", "position"]) for x in habits],
         "countdowns": [serialize(x, ["id", "title", "event_date", "calendar_mode", "lunar_month", "lunar_day", "ignore_year", "kind", "repeat_rule", "icon", "pinned", "archived_at", "created_at", "updated_at"]) for x in countdowns],
         "memos": [serialize(x, ["id", "title", "content", "version", "created_at", "updated_at", "deleted_at"]) for x in memos],
@@ -1570,11 +1589,17 @@ async def restore_json(payload: dict, mode: str = Query("merge", pattern="^(merg
         rrule = raw.get("rrule")
         if trigger_mode not in {"scheduled", "after_completion"}:
             raise HTTPException(422, "无效的重复触发模式")
+        unit = raw.get("after_completion_unit")
+        if unit is not None and unit not in {"days", "months"}:
+            raise HTTPException(422, "无效的完成后重复单位")
         if trigger_mode == "after_completion":
             if not isinstance(days, int) or isinstance(days, bool) or not 1 <= days <= 3650 or rrule is not None:
                 raise HTTPException(422, "无效的完成后重复备份")
-        elif not isinstance(rrule, str):
-            raise HTTPException(422, "定期重复缺少 RRULE")
+            unit = unit or "days"
+        else:
+            if not isinstance(rrule, str) or days is not None or unit is not None:
+                raise HTTPException(422, "定期重复备份包含无效字段")
+            unit = None
         db.add(RecurrenceTemplate(
             user_id=user.id,
             task_id=task_id,
@@ -1583,6 +1608,7 @@ async def restore_json(payload: dict, mode: str = Query("merge", pattern="^(merg
             ends_at=datetime.fromisoformat(raw["ends_at"]) if raw.get("ends_at") else None,
             trigger_mode=trigger_mode,
             after_completion_days=days,
+            after_completion_unit=unit,
             last_completed_at=datetime.fromisoformat(raw["last_completed_at"])
             if raw.get("last_completed_at") else None,
         ))

backend/recurrence_service.py

@@ -2,6 +2,7 @@ from datetime import UTC, datetime, time, timedelta
 from uuid import UUID
 from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
 
+from dateutil.relativedelta import relativedelta
 from fastapi import HTTPException
 from sqlalchemy import select, update
 from sqlalchemy.ext.asyncio import AsyncSession
@@ -25,10 +26,15 @@ def _user_zone(user: User) -> ZoneInfo:
         raise HTTPException(422, "用户时区无效") from exc
 
 
-def _after_completion_due(task: Task, completed_at: datetime, days: int, user: User) -> datetime:
+def _after_completion_due(
+    task: Task, completed_at: datetime, value: int, unit: str | None, user: User
+) -> datetime:
     zone = _user_zone(user)
     completed_local = completed_at.astimezone(zone)
-    target_date = completed_local.date() + timedelta(days=days)
+    if unit == "months":
+        target_date = completed_local.date() + relativedelta(months=value)
+    else:
+        target_date = completed_local.date() + timedelta(days=value)
     if task.due_has_time:
         due_local = task.due_at.astimezone(zone)
         wall_time = due_local.timetz().replace(tzinfo=None)
@@ -67,7 +73,11 @@ async def apply_task_changes(
         if recurrence.trigger_mode == "after_completion":
             completed_at = utcnow()
             next_due = _after_completion_due(
-                task, completed_at, recurrence.after_completion_days, user
+                task,
+                completed_at,
+                recurrence.after_completion_days,
+                recurrence.after_completion_unit,
+                user,
             )
             changes["completed"] = False
             changes["due_at"] = next_due

backend/schemas.py

@@ -125,6 +125,7 @@ class TaskCreate(BaseModel):
     rrule: str | None = Field(default=None, min_length=5, max_length=1000)
     trigger_mode: str | None = Field(default=None, pattern="^(scheduled|after_completion)$")
     after_completion_days: int | None = Field(default=None, ge=1, le=3650)
+    after_completion_unit: str | None = Field(default=None, pattern="^(days|months)$")
 
     @field_validator("title")
     @classmethod
@@ -136,7 +137,12 @@ class TaskCreate(BaseModel):
 
     @model_validator(mode="after")
     def validate_recurrence(self):
-        has_recurrence = self.rrule is not None or self.trigger_mode is not None or self.after_completion_days is not None
+        has_recurrence = (
+            self.rrule is not None
+            or self.trigger_mode is not None
+            or self.after_completion_days is not None
+            or self.after_completion_unit is not None
+        )
         if has_recurrence and self.due_at is None:
             raise ValueError("recurrence requires due_at")
         if has_recurrence and self.parent_id is not None:
@@ -144,10 +150,15 @@ class TaskCreate(BaseModel):
         if self.trigger_mode == "after_completion":
             if self.after_completion_days is None or self.rrule is not None:
                 raise ValueError("after_completion requires days and no rrule")
-        elif self.trigger_mode == "scheduled" and self.rrule is None:
-            raise ValueError("scheduled recurrence requires rrule")
-        elif self.trigger_mode is None and self.after_completion_days is not None:
-            raise ValueError("after_completion_days requires after_completion mode")
+        elif self.trigger_mode == "scheduled":
+            if (
+                self.rrule is None
+                or self.after_completion_days is not None
+                or self.after_completion_unit is not None
+            ):
+                raise ValueError("scheduled recurrence requires rrule and no completion interval")
+        elif self.after_completion_days is not None or self.after_completion_unit is not None:
+            raise ValueError("completion interval requires after_completion mode")
         return self
 
 

frontend/e2e/backup-roundtrip.spec.ts

@@ -8,6 +8,11 @@ function bottomTab(page: Page, name: string) {
   return page.getByRole('navigation', { name: '主要导航' }).getByRole('button', { name, exact: true })
 }
 
+async function openSidebarView(page: Page, name: string) {
+  await page.getByRole('button', { name: /展开菜单|收起菜单/ }).click()
+  await page.locator('.sidebar').getByRole('button', { name, exact: true }).click()
+}
+
 async function csrf(request: APIRequestContext, baseURL: string) {
   const state = await request.storageState()
   return state.cookies.find(cookie => cookie.name === 'dodo_csrf' && baseURL.includes(cookie.domain))?.value
@@ -50,7 +55,7 @@ test('complete ZIP backup preflights and replace-restores task, habit history, c
   expect(countdownResponse.ok()).toBeTruthy()
 
   await page.goto('/')
-  await bottomTab(page, '设置').click()
+  await openSidebarView(page, '设置')
   const downloadPromise = page.waitForEvent('download')
   await page.getByRole('button', { name: '导出 ZIP' }).click()
   const download = await downloadPromise

frontend/e2e/habit-detail-paper-flow.spec.ts

@@ -108,7 +108,19 @@ test('habit detail paper flow is responsive, ordered, scrollable, and preserves
   await dialog.getByRole('button', { name: '关闭习惯详情' }).click()
 
   const archiveToggle = page.locator('.habit-archive-toggle')
+  const activeList = page.locator('.habit-list.plain-list').last()
+  const [activeListBox, archiveToggleBox] = await Promise.all([activeList.boundingBox(), archiveToggle.boundingBox()])
+  expect(activeListBox).not.toBeNull()
+  expect(archiveToggleBox).not.toBeNull()
+  expect(archiveToggleBox!.y - (activeListBox!.y + activeListBox!.height)).toBeGreaterThanOrEqual(24)
+  await expect(archiveToggle).toHaveCSS('background-color', 'rgba(0, 0, 0, 0)')
+  await expect(archiveToggle).toHaveCSS('border-top-width', '0px')
   await archiveToggle.click()
+  const archivedPanel = page.locator('#archived-habits-panel')
+  const [toggleOpenBox, archivePanelBox] = await Promise.all([archiveToggle.boundingBox(), archivedPanel.boundingBox()])
+  expect(toggleOpenBox).not.toBeNull()
+  expect(archivePanelBox).not.toBeNull()
+  expect(archivePanelBox!.y - (toggleOpenBox!.y + toggleOpenBox!.height)).toBeGreaterThanOrEqual(10)
   const archivedOpener = page.getByRole('button', { name: new RegExp(archivedName) })
   await archivedOpener.click()
   dialog = page.getByRole('dialog', { name: archivedName })

frontend/e2e/mobile-ui.spec.ts

@@ -6,11 +6,6 @@ function bottomTab(page: Page, name: string) {
 }
 
 async function openSettings(page: Page) {
-  const mobileTab = bottomTab(page, '设置')
-  if (await mobileTab.isVisible()) {
-    await mobileTab.click()
-    return
-  }
   const desktopSettings = page.getByRole('navigation', { name: '管理' }).getByRole('button', { name: '设置', exact: true })
   const box = await desktopSettings.boundingBox()
   if (box && box.x + box.width > 0 && box.y + box.height > 0 && box.x < (await page.viewportSize())!.width) await desktopSettings.click()
@@ -159,15 +154,21 @@ test('bottom navigation keeps its safe-area gap after dragging', async ({ page }
 })
 
 test('all bottom destinations expose one active page and desktop layout stays unchanged', async ({ page }) => {
+  await page.route('**/api/v1/calendar-subscriptions', route => route.fulfill({ json: [] }))
+  await page.route('**/api/v1/calendar-events?*', route => route.fulfill({ json: { events: [], sources: [] } }))
   await page.goto('/')
   const navigation = page.getByRole('navigation', { name: '主要导航' })
-  for (const label of ['今天', '习惯', '倒数日', '设置']) {
-    await bottomTab(page, label).click()
-    await expect(navigation.locator('[aria-current="page"]')).toHaveCount(1)
-    await expect(bottomTab(page, label)).toHaveAttribute('aria-current', 'page')
+  const mobile = (await page.viewportSize())!.width <= 930
+  if (mobile) {
+    for (const label of ['今天', '习惯', '倒数日', '备忘录', '日历订阅']) {
+      await bottomTab(page, label).click()
+      await expect(navigation.locator('[aria-current="page"]')).toHaveCount(1)
+      await expect(bottomTab(page, label)).toHaveAttribute('aria-current', 'page')
+    }
+    await bottomTab(page, '今天').click()
+  } else {
+    await expect(navigation).toBeHidden()
   }
-
-  await bottomTab(page, '今天').click()
   await page.setViewportSize({ width: 1440, height: 900 })
   const desktop = await page.locator('.shell').evaluate(element => {
     const shell = getComputedStyle(element)
@@ -199,10 +200,55 @@ test('all bottom destinations expose one active page and desktop layout stays un
   expect(desktopBottomGap).toBe(84)
 })
 
+test('calendar week focus keeps seven usable day controls without page overflow', async ({ page }) => {
+  const calendarSources = ['天气','法定节假日','老黄历','节日节气','星座','影视上新','股市指数','街舞赛事','F1'].map((name, index) => ({ id:`calendar-source-${index}`, name, url:`https://example.com/${index}.ics`, color:'#f15a29', enabled:true, refreshed_at:null, last_error:null, stale:false }))
+  await page.route('**/api/v1/calendar-subscriptions', route => route.fulfill({ json: calendarSources }))
+  await page.route('**/api/v1/calendar-events?*', route => route.fulfill({ json: { events: [], sources: [] } }))
+  await page.goto('/')
+  const mobile = (await page.viewportSize())!.width <= 930
+  if (mobile) await bottomTab(page, '日历订阅').click()
+  else await page.locator('.primary-nav').getByRole('button', { name: '日历订阅', exact: true }).click()
+  const strip = page.getByRole('group', { name: '选择日期' })
+  const filters = page.locator('.calendar-filters')
+  await expect(strip).toBeVisible()
+  await expect(filters).toBeVisible()
+  await expect(strip.locator('.calendar-week-day')).toHaveCount(7)
+  const metrics = await strip.evaluate(element => {
+    const filters = document.querySelector<HTMLElement>('.calendar-filters')!
+    const calendar = document.querySelector<HTMLElement>('.calendar-view')!
+    const main = calendar.closest('main') as HTMLElement
+    return {
+      documentOverflow: document.documentElement.scrollWidth - document.documentElement.clientWidth,
+      bodyOverflow: document.body.scrollWidth - document.body.clientWidth,
+      mainOverflow: main.scrollWidth - main.clientWidth,
+      calendarOverflow: calendar.scrollWidth - calendar.clientWidth,
+      filters: { clientWidth: filters.clientWidth, scrollWidth: filters.scrollWidth, overflowX: getComputedStyle(filters).overflowX },
+      stripOverflow: element.scrollWidth > element.clientWidth,
+      buttons: [...element.querySelectorAll<HTMLElement>('.calendar-week-day')].map(button => ({ width: button.getBoundingClientRect().width, height: button.getBoundingClientRect().height })),
+    }
+  })
+  expect(metrics.documentOverflow).toBe(0)
+  expect(metrics.bodyOverflow).toBe(0)
+  expect(metrics.mainOverflow).toBe(0)
+  expect(metrics.calendarOverflow).toBe(0)
+  if ((await page.viewportSize())!.width <= 930) expect(metrics.filters.clientWidth).toBeLessThan(metrics.filters.scrollWidth)
+  else expect(metrics.filters.clientWidth).toBeGreaterThanOrEqual(metrics.filters.scrollWidth)
+  expect(metrics.filters.overflowX).toBe('auto')
+  expect(metrics.buttons.every(button => button.width >= 44 && button.height >= 44)).toBeTruthy()
+  const selectedColors = await strip.locator('.calendar-week-day.is-selected').evaluate(element => {
+    const style = getComputedStyle(element)
+    return { background: style.backgroundColor, color: style.color }
+  })
+  expect(selectedColors).toEqual({ background: 'rgb(241, 90, 41)', color: 'rgb(255, 255, 255)' })
+  if ((await page.viewportSize())!.width <= 390) expect(metrics.stripOverflow).toBeTruthy()
+})
+
 test('settings match the approved paper-ledger geometry and action hierarchy', async ({ page }) => {
   await page.goto('/')
   await openSettings(page)
-  if ((await page.viewportSize())!.width <= 720) await expect(bottomTab(page, '设置')).toHaveAttribute('aria-current', 'page')
+  if ((await page.viewportSize())!.width <= 720) {
+    await expect(page.getByRole('navigation', { name: '主要导航' }).getByRole('button', { name: '设置', exact: true })).toHaveCount(0)
+  }
   const groups = page.locator('.settings-group')
   await expect(groups).toHaveCount(4)
   const layout = await page.locator('.settings-sections').evaluate(element => {

frontend/e2e/task-pagination-position.spec.ts

@@ -0,0 +1,96 @@
+import type { APIRequestContext, Page } from '@playwright/test'
+import { expect, test } from './fixtures'
+
+async function csrf(request: APIRequestContext) {
+  const state = await request.storageState()
+  return state.cookies.find(cookie => cookie.name === 'dodo_csrf')?.value ?? ''
+}
+
+async function createTask(request: APIRequestContext, baseURL: string, listId: string, title: string) {
+  const response = await request.post('/api/v1/tasks', {
+    data: { title, list_id: listId },
+    headers: { 'x-csrf-token': await csrf(request), origin: baseURL },
+  })
+  expect(response.ok(), await response.text()).toBeTruthy()
+}
+
+async function openInbox(page: Page) {
+  const inbox = page.locator('.sidebar').getByRole('button', { name: '收集箱', exact: true })
+  if (await page.evaluate(() => window.innerWidth <= 930)) {
+    await page.locator('main .topbar > button').first().click()
+  }
+  await inbox.click()
+}
+
+test('task pagination stays below the list and returns to the list start after navigation', async ({ page, request, baseURL }) => {
+  const bootstrapResponse = await request.get('/api/v1/bootstrap')
+  expect(bootstrapResponse.ok()).toBeTruthy()
+  const inbox = (await bootstrapResponse.json()).lists.find((item: { is_inbox: boolean }) => item.is_inbox)
+  expect(inbox).toBeTruthy()
+
+  for (let index = 1; index <= 51; index += 1) {
+    await createTask(request, baseURL!, inbox.id, `分页验收任务 ${String(index).padStart(2, '0')}`)
+  }
+
+  await page.goto('/')
+  await openInbox(page)
+
+  const taskList = page.locator('.task-list')
+  const pager = page.locator('.pager')
+  await expect(taskList.locator('.task-row')).toHaveCount(50)
+  await expect(pager).toBeVisible()
+  await expect(pager.locator('.pager-status')).toHaveText('1 / 2共 51 项')
+  await expect(page.locator('.list-page-meta')).toHaveCount(0)
+
+  const firstPageGeometry = await page.evaluate(() => {
+    const list = document.querySelector<HTMLElement>('.task-list')!.getBoundingClientRect()
+    const pagerElement = document.querySelector<HTMLElement>('.pager')!
+    const pagerBox = pagerElement.getBoundingClientRect()
+    const previous = pagerElement.querySelector<HTMLButtonElement>('.pager-button--previous')!
+    const next = pagerElement.querySelector<HTMLButtonElement>('.pager-button--next')!
+    const status = pagerElement.querySelector<HTMLElement>('.pager-status')!
+    const previousBox = previous.getBoundingClientRect()
+    const nextBox = next.getBoundingClientRect()
+    const statusBox = status.getBoundingClientRect()
+    const pagerCenter = pagerBox.left + pagerBox.width / 2
+    return {
+      listBottom: list.bottom,
+      pagerTop: pagerBox.top,
+      previousWidth: previousBox.width,
+      nextWidth: nextBox.width,
+      previousHeight: previousBox.height,
+      nextHeight: nextBox.height,
+      statusCenterOffset: Math.abs(statusBox.left + statusBox.width / 2 - pagerCenter),
+      rootScrollWidth: document.documentElement.scrollWidth,
+      viewportWidth: innerWidth,
+    }
+  })
+  expect(firstPageGeometry.pagerTop).toBeGreaterThanOrEqual(firstPageGeometry.listBottom)
+  expect(Math.abs(firstPageGeometry.previousWidth - firstPageGeometry.nextWidth)).toBeLessThanOrEqual(1)
+  expect(firstPageGeometry.previousHeight).toBeGreaterThanOrEqual(44)
+  expect(firstPageGeometry.nextHeight).toBeGreaterThanOrEqual(44)
+  expect(firstPageGeometry.statusCenterOffset).toBeLessThanOrEqual(1)
+  expect(firstPageGeometry.rootScrollWidth).toBeLessThanOrEqual(firstPageGeometry.viewportWidth)
+
+  const nextButton = pager.getByRole('button', { name: '下一页' })
+  await page.locator('body').click({ position: { x: 1, y: 1 } })
+  for (let index = 0; index < 300; index += 1) {
+    await page.keyboard.press('Tab')
+    if (await nextButton.evaluate(element => element === document.activeElement)) break
+  }
+  await expect(nextButton).toBeFocused()
+  const focusOutline = await nextButton.evaluate(element => getComputedStyle(element).outlineStyle)
+  expect(focusOutline).not.toBe('none')
+  await nextButton.click()
+  await expect(pager.locator('.pager-status')).toHaveText('2 / 2共 51 项')
+  await expect(taskList.locator('.task-row')).toHaveCount(1)
+
+  const secondPageGeometry = await page.evaluate(() => {
+    const list = document.querySelector<HTMLElement>('.task-list')!.getBoundingClientRect()
+    const pagerBox = document.querySelector<HTMLElement>('.pager')!.getBoundingClientRect()
+    return { listTop: list.top, listBottom: list.bottom, pagerTop: pagerBox.top, viewportHeight: innerHeight }
+  })
+  expect(secondPageGeometry.listTop).toBeGreaterThanOrEqual(-1)
+  expect(secondPageGeometry.listTop).toBeLessThan(secondPageGeometry.viewportHeight / 2)
+  expect(secondPageGeometry.pagerTop).toBeGreaterThanOrEqual(secondPageGeometry.listBottom)
+})

frontend/e2e/trash-grouped-layout.spec.ts

@@ -0,0 +1,105 @@
+import type { APIRequestContext, Page } from '@playwright/test'
+import { allowExpectedError, expect, test } from './fixtures'
+
+async function csrf(request: APIRequestContext) {
+  const state = await request.storageState()
+  return state.cookies.find(cookie => cookie.name === 'dodo_csrf')?.value ?? ''
+}
+
+async function mutate(request: APIRequestContext, baseURL: string, path: string, options: Parameters<APIRequestContext['fetch']>[1]) {
+  return request.fetch(path, { ...options, headers: { ...options?.headers, 'x-csrf-token': await csrf(request), origin: baseURL } })
+}
+
+async function openTrash(page: Page) {
+  if ((await page.viewportSize())!.width <= 930) {
+    await page.locator('.topbar').getByRole('button', { name: /展开菜单|收起菜单/ }).click()
+  }
+  await page.locator('.sidebar').getByRole('button', { name: '回收站', exact: true }).click()
+}
+
+test('Trash uses compact deadline groups without exposing child-level actions', async ({ page, request, baseURL }) => {
+  const suffix = `${test.info().project.name}-${Date.now()}`
+  const bootstrap = await request.get('/api/v1/bootstrap')
+  const inbox = (await bootstrap.json()).lists.find((item: { is_inbox: boolean }) => item.is_inbox)
+  expect(inbox).toBeTruthy()
+
+  const createDeleted = async (title: string, dueAt?: string) => {
+    const created = await mutate(request, baseURL!, '/api/v1/tasks', {
+      method: 'POST', data: { title, list_id: inbox.id, ...(dueAt ? { due_at: dueAt, due_has_time: false } : {}) },
+    })
+    expect(created.ok(), await created.text()).toBeTruthy()
+    const task = await created.json() as { id: string }
+    expect((await mutate(request, baseURL!, `/api/v1/tasks/${task.id}`, { method: 'DELETE' })).ok()).toBeTruthy()
+    return task
+  }
+
+  const overdueTitle = `回收站过期-${suffix}`
+  const futureTitle = `回收站未来-${suffix}`
+  const undatedTitle = `回收站无日期-${suffix}`
+  await createDeleted(overdueTitle, '2026-01-02T15:59:00.000Z')
+  await createDeleted(futureTitle, '2099-12-30T15:59:00.000Z')
+  await createDeleted(undatedTitle)
+
+  await page.goto('/')
+  await openTrash(page)
+
+  await expect(page.locator('.trash-page-context')).toContainText('删除的任务保留在这里，可整组恢复或永久删除。')
+  for (const group of ['已过期', '未来截止', '无截止日期']) {
+    await expect(page.getByRole('heading', { name: group, exact: true })).toBeVisible()
+  }
+  for (const title of [overdueTitle, futureTitle, undatedTitle]) {
+    const row = page.locator('.task-row--trash').filter({ hasText: title })
+    await expect(row).toHaveCount(1)
+    await expect(row.getByRole('button', { name: '恢复' })).toHaveCount(0)
+    await expect(row.getByRole('button', { name: '打开任务操作' })).toBeVisible()
+    expect(await row.locator('.task-check').count()).toBe(0)
+  }
+
+  const overdueRow = page.locator('.task-row--trash').filter({ hasText: overdueTitle })
+  await expect(overdueRow.locator('.task-tail')).toBeVisible()
+  const actionTrigger = overdueRow.getByRole('button', { name: '打开任务操作' })
+  await actionTrigger.focus()
+  await actionTrigger.press('Enter')
+  const menu = page.getByRole('menu', { name: '回收站任务操作' })
+  await expect(menu).toBeVisible()
+  await expect(menu.getByRole('menuitem', { name: '恢复', exact: true })).toBeFocused()
+  await menu.getByRole('menuitem', { name: '恢复', exact: true }).press('Tab')
+  await expect(menu.getByRole('menuitem', { name: '永久删除' })).toBeFocused()
+  await menu.getByRole('menuitem', { name: '永久删除' }).press('Shift+Tab')
+  await expect(menu.getByRole('menuitem', { name: '恢复', exact: true })).toBeFocused()
+  await menu.getByRole('menuitem', { name: '恢复', exact: true }).press('ArrowUp')
+  await expect(menu.getByRole('menuitem', { name: '永久删除' })).toBeFocused()
+  await menu.getByRole('menuitem', { name: '永久删除' }).press('Escape')
+  await expect(menu).toBeHidden()
+  await expect(actionTrigger).toBeFocused()
+  await actionTrigger.click()
+  await page.getByRole('menuitem', { name: '永久删除' }).click()
+  const dialog = page.getByRole('dialog')
+  await expect(dialog).toContainText(`输入任务名称“${overdueTitle}”确认`)
+  await dialog.getByRole('button', { name: '永久删除' }).click()
+  await expect(dialog.getByRole('alert')).toContainText('任务名称不匹配')
+  await dialog.getByRole('button', { name: '取消' }).click()
+  await expect(actionTrigger).toBeFocused()
+
+  const geometry = await page.evaluate(() => ({
+    viewport: innerWidth,
+    document: document.documentElement.scrollWidth,
+    controls: [...document.querySelectorAll<HTMLElement>('.trash-list button')].map(button => {
+      const rect = button.getBoundingClientRect()
+      return { width: rect.width, height: rect.height }
+    }),
+  }))
+  expect(geometry.document).toBe(geometry.viewport)
+  for (const control of geometry.controls) {
+    expect(control.width).toBeGreaterThanOrEqual(44)
+    expect(control.height).toBeGreaterThanOrEqual(44)
+  }
+
+  await actionTrigger.click()
+  await page.getByRole('menuitem', { name: '永久删除' }).click()
+  await dialog.getByLabel(`输入任务名称“${overdueTitle}”确认`).fill(overdueTitle)
+  allowExpectedError(page, `requestfailed: DELETE ${baseURL}/api/v1/trash/`)
+  await dialog.getByRole('button', { name: '永久删除' }).click()
+  await expect(overdueRow).toHaveCount(0)
+  await expect(page.getByRole('heading', { name: '回收站', exact: true })).toBeFocused()
+})

frontend/e2e/ui-reduction-acceptance.spec.ts

@@ -101,23 +101,28 @@ test('task rows use the body for detail and Trash keeps distinct actions', async
   await page.getByRole('button', { name: '关闭详情' }).click()
 
   await openSidebarView(page, '回收站')
+  await expect(page.locator('.trash-page-context')).toContainText('删除的任务保留在这里，可整组恢复或永久删除。')
+  await expect(page.getByRole('heading', { name: '无截止日期', exact: true })).toBeVisible()
   const restoreRow = await taskRow(page, restoreTitle)
   const purgeRow = await taskRow(page, purgeTitle)
   for (const deletedRow of [restoreRow, purgeRow]) {
-    await expect(deletedRow.getByRole('button', { name: '恢复' })).toBeVisible()
-    await expect(deletedRow.getByRole('button', { name: '永久删除' })).toBeVisible()
+    await expect(deletedRow.getByRole('button', { name: '恢复' })).toHaveCount(0)
+    await expect(deletedRow.getByRole('button', { name: '打开任务操作' })).toBeVisible()
     await expect(deletedRow.locator('.task-main')).not.toHaveAttribute('role')
     await expect(deletedRow.locator('.task-main')).not.toHaveAttribute('tabindex')
     expect(await deletedRow.locator('.task-detail-trigger, .task-check').count()).toBe(0)
   }
-  await restoreRow.getByRole('button', { name: '恢复' }).click()
+  await restoreRow.getByRole('button', { name: '打开任务操作' }).click()
+  await page.getByRole('menuitem', { name: '恢复', exact: true }).click()
   await expect(restoreRow).toHaveCount(0)
-  await purgeRow.getByRole('button', { name: '永久删除' }).click()
+  await purgeRow.getByRole('button', { name: '打开任务操作' }).click()
+  await page.getByRole('menuitem', { name: '永久删除' }).click()
   const purgeDialog = page.getByRole('dialog', { name: `永久删除“${purgeTitle}”？` })
   await expect(purgeDialog).toBeVisible()
   // The UI can abort the completed 204 request while the confirmation overlay closes.
   allowExpectedError(page, `requestfailed: DELETE ${baseURL}/api/v1/trash/`)
-  await purgeDialog.getByRole('button', { name: '确认', exact: true }).click()
+  await purgeDialog.getByLabel(`输入任务名称“${purgeTitle}”确认`).fill(purgeTitle)
+  await purgeDialog.getByRole('button', { name: '永久删除', exact: true }).click()
   await expect(purgeRow).toHaveCount(0)
   await page.reload()
   await expect(page.locator('.task-row').filter({ hasText: restoreTitle })).toHaveCount(0)
@@ -130,7 +135,7 @@ test('task rows use the body for detail and Trash keeps distinct actions', async
 
 test('Settings removes intro/empty danger and places mode-specific restore risk copy correctly', async ({ page }, testInfo) => {
   await page.goto('/')
-  await bottomTab(page, '设置').click()
+  await openSidebarView(page, '设置')
   expect(await page.locator('.view-intro').count()).toBe(0)
   await expect(page.locator('.settings-group')).toHaveCount(4)
   expect(await page.locator('.settings-danger').count()).toBe(0)

frontend/src/App.vue

@@ -1,21 +1,22 @@
 <script setup lang="ts">
 import { computed, nextTick, onMounted, onUnmounted, ref, watch } from 'vue'
 import {
-  ArchiveRestore, Bold, CalendarDays, CalendarHeart, Check, ChevronDown, ChevronRight, Code, Folder,
+  ArchiveRestore, Bold, CalendarDays, CalendarHeart, Check, ChevronDown, ChevronLeft, ChevronRight, Code, Folder,
   Ellipsis, GripVertical, Heading2, Inbox, Italic, Link, List, ListChecks, ListOrdered, ListTodo, Menu, Pencil, Plus, Quote,
   Settings, Trash2, X, Repeat2, StickyNote,
 } from 'lucide-vue-next'
-import { applyMarkdownFormat, buildTaskDueDraft, buildTaskRecurrencePayload, defaultTaskDueAt, fromDateTimeLocal, groupTaskTree, isSameTaskSortTier, moveItemWithinScope, parseTaskDueDraft, parseTaskRecurrence, parseTaskRrule, renderMarkdown, type MarkdownFormat, type TaskRepeatConfig, type TaskRepeatOption } from './lib/task-utils'
+import { applyMarkdownFormat, buildTaskDueDraft, buildTaskRecurrencePayload, defaultTaskDueAt, fromDateTimeLocal, groupTaskTree, groupTrashTaskTree, isSameTaskSortTier, moveItemWithinScope, parseTaskDueDraft, parseTaskRecurrence, parseTaskRrule, renderMarkdown, type AfterCompletionUnit, type MarkdownFormat, type TaskRepeatConfig, type TaskRepeatOption } from './lib/task-utils'
 import { beginLatestRequest, createMutationReconciler, createTaskCompletionExitCoordinator, createTaskToggleCoordinator, formatApiErrorDetail, isLatestRequest, isTaskView, loadCountdownCache, mergeTaskToggleResponse, normalizeRequiredName, readStoredBoolean, readStoredNavigation, reconcileCurrentTaskView, runLatestRequest, shouldToggleRowSwipe, startPrimaryWithBackground, taskVersionedPatchPayload, writeStoredBoolean, writeStoredNavigation } from './lib/mvp-utils'
 import { csrfHeader } from './lib/csrf'
 import { createCompletionPulse, shouldAnimateCompletionExit, waitForCompletionExit } from './lib/completion-motion'
-import { captureListDragPointer, getAdjacentListMove, hasExceededLongPressMovement, moveListToScope, snapshotListDragPointer, type ListDragPointer } from './lib/list-drag'
+import { captureListDragPointer, hasExceededLongPressMovement, moveListToScope, snapshotListDragPointer, type ListDragPointer } from './lib/list-drag'
 import { deriveMemoShellState } from './lib/app-shell-state'
 import { clampDesktopPaneWidth, getDesktopPaneMax, readDesktopPaneWidth, writeDesktopPaneWidth, type DesktopPane } from './lib/desktop-shell-resize'
 import { positionArchivedMenu, resolveArchivedMenuFocusTarget } from './lib/archived-list-menu'
 import MvpPanel from './MvpPanel.vue'
 import CountdownPanel from './CountdownPanel.vue'
 import MemoPanel from './MemoPanel.vue'
+import CalendarPanel from './CalendarPanel.vue'
 import FloatingAddButton from './components/FloatingAddButton.vue'
 import CompletedFilterPill from './components/CompletedFilterPill.vue'
 import CalendarPicker from './components/CalendarPicker.vue'
@@ -31,8 +32,8 @@ type FolderItem = { id: string; name: string }
 type TaskList = { id: string; folder_id: string | null; name: string; is_inbox: boolean }
 type Task = { id: string; list_id: string; parent_id: string | null; title: string; description: string; priority: number; completed: boolean; completed_at: string | null; version: number; due_at: string | null; due_has_time: boolean; subtasks?: Task[] }
 type RepeatOption = TaskRepeatOption
-type Recurrence = { id: string; task_id: string; rrule: string | null; trigger_mode: 'scheduled' | 'after_completion'; after_completion_days: number | null }
-type View = 'tasks' | 'today' | 'upcoming' | 'trash' | 'habits' | 'countdowns' | 'memos' | 'settings'
+type Recurrence = { id: string; task_id: string; rrule: string | null; trigger_mode: 'scheduled' | 'after_completion'; after_completion_days: number | null; after_completion_unit: AfterCompletionUnit | null }
+type View = 'tasks' | 'today' | 'upcoming' | 'trash' | 'habits' | 'countdowns' | 'memos' | 'calendar' | 'settings'
 
 const initialized = ref<boolean | null>(null)
 const authReady = ref(false)
@@ -55,6 +56,11 @@ let purgeListTrigger: HTMLElement | null = null
 const tasks = ref<Task[]>([])
 const overdueTasks = ref<Task[]>([])
 const trash = ref<Task[]>([])
+const taskListElement = ref<HTMLElement | null>(null)
+const trashAction = ref<Task | null>(null)
+const trashMenu = ref<HTMLElement | null>(null)
+const trashPageTitle = ref<HTMLElement | null>(null)
+let trashActionTrigger: HTMLElement | null = null
 const NAVIGATION_STORAGE_KEY = 'dodo.navigation'
 const restoredNavigation = readStoredNavigation(window.localStorage, NAVIGATION_STORAGE_KEY)
 const activeList = ref(restoredNavigation.listId)
@@ -63,7 +69,11 @@ const selectedTask = ref<Task | null>(null)
 const taskSelectionGeneration = ref(0)
 const sidebarCreateOpen = ref(false)
 const sidebarAction = ref<{ kind: 'folders' | 'lists'; item: FolderItem | TaskList } | null>(null)
-const listMoveMenuOpen = ref(false)
+const listEditorTarget = ref<TaskList | null>(null)
+const listEditorName = ref('')
+const listEditorFolderId = ref('')
+const listEditorError = ref('')
+const listEditorBusy = ref(false)
 const sidebarActionFolderListCount = computed(() => {
   const action = sidebarAction.value
   if (!action || action.kind !== 'folders') return 0
@@ -88,9 +98,9 @@ const desktopViewportWidth = ref(window.innerWidth)
 const sidebarWidth = ref(readDesktopPaneWidth(window.localStorage, SIDEBAR_WIDTH_STORAGE_KEY, 236))
 const detailWidth = ref(readDesktopPaneWidth(window.localStorage, DETAIL_WIDTH_STORAGE_KEY, 350))
 const resizingPane = ref<DesktopPane | null>(null)
-const sidebarMaxWidth = computed(() => getDesktopPaneMax('sidebar', desktopViewportWidth.value, selectedTask.value || habitDetailOpen.value ? detailWidth.value : 0))
+const sidebarMaxWidth = computed(() => getDesktopPaneMax('sidebar', desktopViewportWidth.value, selectedTask.value || habitDetailOpen.value || calendarDetailOpen.value ? detailWidth.value : 0))
 const detailMaxWidth = computed(() => getDesktopPaneMax('detail', desktopViewportWidth.value, sidebarCollapsed.value ? 0 : sidebarWidth.value))
-const detailSeparatorLabel = computed(() => habitDetailOpen.value && !selectedTask.value ? '调整习惯详情宽度' : '调整任务详情宽度')
+const detailSeparatorLabel = computed(() => calendarDetailOpen.value ? '调整日程详情宽度' : habitDetailOpen.value && !selectedTask.value ? '调整习惯详情宽度' : '调整任务详情宽度')
 const shellStyle = computed(() => ({ '--sidebar-width': `${sidebarWidth.value}px`, '--detail-width': `${detailWidth.value}px` }))
 let paneResizePointerId: number | null = null
 let paneResizeCaptureTarget: HTMLElement | null = null
@@ -157,9 +167,11 @@ const composePriority = ref(0)
 const composeDescription = ref('')
 const composeRepeat = ref<RepeatOption>('none')
 const composeAfterCompletionDays = ref('1')
+const composeAfterCompletionUnit = ref<AfterCompletionUnit>('days')
 const composeRepeatError = ref('')
 const selectedTaskRepeat = ref<RepeatOption>('none')
 const selectedAfterCompletionDays = ref('1')
+const selectedAfterCompletionUnit = ref<AfterCompletionUnit>('days')
 const selectedRepeatError = ref('')
 const selectedTaskRecurrence = ref<Recurrence | null>(null)
 const recurrenceLoading = ref(false)
@@ -182,6 +194,7 @@ const memoPanel = ref<InstanceType<typeof MemoPanel> | null>(null)
 const memoTrash = ref(false)
 const memoDetailOpen = ref(false)
 const habitDetailOpen = ref(false)
+const calendarDetailOpen = ref(false)
 const compactLayout = ref(desktopViewportWidth.value <= 930)
 const memoShellState = computed(() => deriveMemoShellState({ view: activeView.value, detailOpen: memoDetailOpen.value, compact: compactLayout.value, trash: memoTrash.value }))
 const memoBackgroundInert = computed(() => memoShellState.value.backgroundInert)
@@ -204,6 +217,7 @@ function openTaskCompose() {
   composeDescription.value = ''
   composeRepeat.value = 'none'
   composeAfterCompletionDays.value = '1'
+  composeAfterCompletionUnit.value = 'days'
   composeRepeatError.value = ''
   composeRepeatConfig.value = defaultRepeatConfig()
   composeCalendarOpen.value = false
@@ -242,13 +256,13 @@ function activateFloatingAdd(origin: { x: number; y: number }) {
   else if (activeView.value === 'memos') void memoPanel.value?.createMemo()
   else if (['tasks', 'today', 'upcoming'].includes(activeView.value)) openTaskCompose()
 }
-async function saveRepeat(task: Task, value: RepeatOption, config: TaskRepeatConfig, afterCompletionDays: string, recurrence: Recurrence | null) {
+async function saveRepeat(task: Task, value: RepeatOption, config: TaskRepeatConfig, afterCompletionDays: string, afterCompletionUnit: AfterCompletionUnit, recurrence: Recurrence | null) {
   if (value !== 'none' && !task.due_at) throw new Error('请先设置截止时间')
   if (value === 'none') {
     if (recurrence) await api(`/recurrences/${recurrence.id}`, { method: 'DELETE' })
     return null
   }
-  const recurrencePayload = buildTaskRecurrencePayload(value, { afterCompletionDays, repeatConfig: config })
+  const recurrencePayload = buildTaskRecurrencePayload(value, { afterCompletionDays, afterCompletionUnit, repeatConfig: config })
   if (recurrence) {
     return await api(`/recurrences/${recurrence.id}`, { method: 'PATCH', body: JSON.stringify(recurrencePayload) }) as Recurrence
   }
@@ -262,6 +276,7 @@ async function loadTaskRecurrence(task: Task) {
   selectedTaskRecurrence.value = null
   selectedTaskRepeat.value = 'none'
   selectedAfterCompletionDays.value = '1'
+  selectedAfterCompletionUnit.value = 'days'
   selectedRepeatError.value = ''
   try {
     const recurrence = await api(`/tasks/${task.id}/recurrence`) as Recurrence | null
@@ -270,6 +285,7 @@ async function loadTaskRecurrence(task: Task) {
     const parsed = parseTaskRecurrence(recurrence)
     selectedTaskRepeat.value = parsed.option
     selectedAfterCompletionDays.value = String(parsed.afterCompletionDays)
+    selectedAfterCompletionUnit.value = parsed.afterCompletionUnit
     selectedRepeatConfig.value = recurrence?.rrule ? parseTaskRrule(recurrence.rrule) : defaultRepeatConfig()
   } catch (reason) {
     if (selectionIsCurrent()) fail(reason)
@@ -292,7 +308,7 @@ async function submitTaskCompose() {
   const targetListId = composeListId.value
   creatingTask.value = true
   try {
-    const recurrencePayload = buildTaskRecurrencePayload(composeRepeat.value, { afterCompletionDays: composeAfterCompletionDays.value, repeatConfig: composeRepeatConfig.value })
+    const recurrencePayload = buildTaskRecurrencePayload(composeRepeat.value, { afterCompletionDays: composeAfterCompletionDays.value, afterCompletionUnit: composeAfterCompletionUnit.value, repeatConfig: composeRepeatConfig.value })
     const dueValue = composeDueAt.value ? `${composeDueAt.value}T${composeHasTime.value ? composeTime.value : '23:59'}` : ''
     if (composeRepeat.value !== 'none' && !dueValue) throw new Error('请先设置截止时间')
     await taskMutationReconciler.run(
@@ -350,11 +366,11 @@ function movePaneResize(event: PointerEvent) {
   if (!resizingPane.value || event.pointerId !== paneResizePointerId) return
   if (event.buttons === 0) { stopPaneResize(); return }
   const nextWidth = resizingPane.value === 'sidebar' ? event.clientX : window.innerWidth - event.clientX
-  if (resizingPane.value === 'sidebar') sidebarWidth.value = clampDesktopPaneWidth('sidebar', nextWidth, window.innerWidth, selectedTask.value || habitDetailOpen.value ? detailWidth.value : 0)
+  if (resizingPane.value === 'sidebar') sidebarWidth.value = clampDesktopPaneWidth('sidebar', nextWidth, window.innerWidth, selectedTask.value || habitDetailOpen.value || calendarDetailOpen.value ? detailWidth.value : 0)
   else detailWidth.value = clampDesktopPaneWidth('detail', nextWidth, window.innerWidth, sidebarCollapsed.value ? 0 : sidebarWidth.value)
 }
 function startPaneResize(pane: DesktopPane, event: PointerEvent) {
-  if (event.button !== 0 || compactLayout.value || (pane === 'detail' && !selectedTask.value && !habitDetailOpen.value)) return
+  if (event.button !== 0 || compactLayout.value || (pane === 'detail' && !selectedTask.value && !habitDetailOpen.value && !calendarDetailOpen.value)) return
   event.preventDefault()
   paneResizeCaptureTarget = event.currentTarget as HTMLElement
   paneResizeCaptureTarget.setPointerCapture?.(event.pointerId)
@@ -365,7 +381,7 @@ function resizePaneWithKeyboard(pane: DesktopPane, event: KeyboardEvent) {
   if (!['ArrowLeft', 'ArrowRight'].includes(event.key)) return
   event.preventDefault()
   const direction = event.key === 'ArrowRight' ? 1 : -1
-  if (pane === 'sidebar') sidebarWidth.value = clampDesktopPaneWidth('sidebar', sidebarWidth.value + direction * 12, window.innerWidth, selectedTask.value || habitDetailOpen.value ? detailWidth.value : 0)
+  if (pane === 'sidebar') sidebarWidth.value = clampDesktopPaneWidth('sidebar', sidebarWidth.value + direction * 12, window.innerWidth, selectedTask.value || habitDetailOpen.value || calendarDetailOpen.value ? detailWidth.value : 0)
   else detailWidth.value = clampDesktopPaneWidth('detail', detailWidth.value - direction * 12, window.innerWidth, sidebarCollapsed.value ? 0 : sidebarWidth.value)
   writeDesktopPaneWidth(window.localStorage, pane === 'sidebar' ? SIDEBAR_WIDTH_STORAGE_KEY : DETAIL_WIDTH_STORAGE_KEY, pane === 'sidebar' ? sidebarWidth.value : detailWidth.value)
 }
@@ -389,6 +405,7 @@ const activeName = computed(() => {
   if (activeView.value === 'habits') return '习惯'
   if (activeView.value === 'countdowns') return '倒数日'
   if (activeView.value === 'memos') return '备忘录'
+  if (activeView.value === 'calendar') return '日历订阅'
   if (activeView.value === 'settings') return '设置与数据'
   return lists.value.find((item) => item.id === activeList.value)?.name || '收集箱'
 })
@@ -409,7 +426,7 @@ const sourceTasks = computed(() => activeView.value === 'trash' ? trash.value :
 const visibleTasks = computed(() => {
   const now = new Date()
   let result = sourceTasks.value
-  if (['habits','settings','countdowns','memos'].includes(activeView.value)) return []
+  if (['habits','settings','countdowns','memos','calendar'].includes(activeView.value)) return []
   if (activeView.value === 'today') result = result.filter((task) => {
     const dueToday = task.due_at && new Date(task.due_at).toDateString() === now.toDateString()
     const completedToday = task.completed_at && new Date(task.completed_at).toDateString() === now.toDateString()
@@ -420,6 +437,7 @@ const visibleTasks = computed(() => {
 })
 const selectedTaskSubtasks = computed(() => selectedTask.value?.subtasks ?? [])
 const taskTree = computed(() => groupTaskTree(visibleTasks.value))
+const trashGroups = computed(() => groupTrashTaskTree(visibleTasks.value))
 const overdueTaskTree = computed(() => groupTaskTree(overdueTasks.value))
 watch(composeDueAt, (value) => {
   if (!value) { composeHasTime.value = false; composeRepeat.value = 'none' }
@@ -717,7 +735,7 @@ async function loadTrashPage() {
 async function loadTrash() {
   loading.value = true
   error.value = ''
-  return await runLatestRequest('trash', loadTrashPage, {
+  const committed = await runLatestRequest('trash', loadTrashPage, {
     success: (data) => {
       trash.value = data.items ?? []
       totalTasks.value = data.total ?? trash.value.length
@@ -725,6 +743,11 @@ async function loadTrash() {
     error: fail,
     finally: () => { loading.value = false },
   })
+  if (committed && page.value > totalPages.value) {
+    page.value = totalPages.value
+    return await loadTrash()
+  }
+  return committed
 }
 async function switchView(view: View, listId?: string) {
   if (activeView.value === 'memos' && view !== 'memos' && memoPanel.value?.dirty && !(await confirmAction('有未保存的更改', '确定离开当前备忘录吗？'))) return
@@ -748,7 +771,7 @@ async function switchView(view: View, listId?: string) {
   if (listId) activeList.value = listId
   writeStoredNavigation(window.localStorage, NAVIGATION_STORAGE_KEY, view, activeList.value)
   page.value = 1
-  habitComposer.value?.closeHabitDetail(true); selectedTask.value = null; habitDetailOpen.value = false; taskSelectionGeneration.value += 1; mobileSidebar.value = false; mobileDetail.value = false; taskComposeGeneration.value += 1; taskComposeOpen.value = false; sidebarCreateOpen.value = false; sidebarAction.value = null
+  habitComposer.value?.closeHabitDetail(true); selectedTask.value = null; habitDetailOpen.value = false; calendarDetailOpen.value = false; taskSelectionGeneration.value += 1; mobileSidebar.value = false; mobileDetail.value = false; taskComposeGeneration.value += 1; taskComposeOpen.value = false; sidebarCreateOpen.value = false; sidebarAction.value = null
   if (view !== 'memos') memoDetailOpen.value = false
   if (view === 'trash') await loadTrash()
   else if (view === 'today') await loadTodayView()
@@ -1091,6 +1114,7 @@ async function saveSelectedTaskChanges() {
   const repeatValue = selectedDueDate.value ? selectedTaskRepeat.value : 'none'
   const repeatConfig = JSON.parse(JSON.stringify(selectedRepeatConfig.value)) as TaskRepeatConfig
   const afterCompletionDays = selectedAfterCompletionDays.value
+  const afterCompletionUnit = selectedAfterCompletionUnit.value
   const recurrence = selectedTaskRecurrence.value
   selectedRepeatError.value = ''
   try {
@@ -1100,7 +1124,7 @@ async function saveSelectedTaskChanges() {
       selectedTaskRecurrence.value = null
       selectedTaskRepeat.value = 'none'
     } else {
-      const updatedRecurrence = await saveRepeat(taskSaved, repeatValue, repeatConfig, afterCompletionDays, recurrence)
+      const updatedRecurrence = await saveRepeat(taskSaved, repeatValue, repeatConfig, afterCompletionDays, afterCompletionUnit, recurrence)
       if (recurrenceLoadToken !== selectionToken || selectedTask.value?.id !== taskId) return
       selectedTaskRecurrence.value = updatedRecurrence
     }
@@ -1148,8 +1172,57 @@ async function mutateTrashTask(task: Task, mutation: () => Promise<unknown>, suc
 async function restoreTask(task: Task) {
   await mutateTrashTask(task, () => api(`/tasks/${task.id}/restore`, { method: 'POST' }), '任务已恢复', true)
 }
+function openTrashAction(task: Task, event?: Event) {
+  trashActionTrigger = event?.currentTarget instanceof HTMLElement ? event.currentTarget : null
+  trashAction.value = task
+  nextTick(() => trashMenu.value?.querySelector<HTMLElement>('[role=menuitem]')?.focus())
+}
+function moveTrashMenuFocus(step: number) {
+  const items = [...(trashMenu.value?.querySelectorAll<HTMLElement>('[role=menuitem]') ?? [])]
+  if (!items.length) return
+  const activeIndex = items.indexOf(document.activeElement as HTMLElement)
+  items[(activeIndex + step + items.length) % items.length]?.focus()
+}
+function focusTrashActionTrigger(trigger: HTMLElement | null) {
+  nextTick(() => {
+    if (trigger?.isConnected) trigger.focus()
+    else trashPageTitle.value?.focus()
+  })
+}
+function closeTrashAction(restoreFocus = true) {
+  const trigger = trashActionTrigger
+  trashAction.value = null
+  trashActionTrigger = null
+  if (restoreFocus) focusTrashActionTrigger(trigger)
+}
+async function requestRestoreTask() {
+  const task = trashAction.value
+  const trigger = trashActionTrigger
+  closeTrashAction(false)
+  if (task) await restoreTask(task)
+  focusTrashActionTrigger(trigger)
+}
+async function requestPurgeTask() {
+  const task = trashAction.value
+  const trigger = trashActionTrigger
+  closeTrashAction(false)
+  if (task) await purgeTask(task)
+  focusTrashActionTrigger(trigger)
+}
 async function purgeTask(task: Task) {
-  if (!(await confirmAction(`永久删除“${task.title}”？`, '这个操作不能撤销。', true))) return
+  const childCount = task.subtasks?.length ?? 0
+  const impact = childCount
+    ? `此任务及其 ${childCount} 个子任务将被永久删除，不能撤销。`
+    : '此任务将被永久删除，不能撤销。'
+  const entered = await appDialog.value?.show({
+    title: `永久删除“${task.title}”？`,
+    description: impact,
+    label: `输入任务名称“${task.title}”确认`,
+    confirmText: '永久删除',
+    danger: true,
+    validate: (value) => value.trim() === task.title ? null : '任务名称不匹配',
+  })
+  if (typeof entered !== 'string') return
   await mutateTrashTask(task, () => api(`/trash/${task.id}`, { method: 'DELETE' }), '任务已永久删除', false)
 }
 async function addSubtask() {
@@ -1268,32 +1341,14 @@ async function createList(folderId: string | null = null) {
   const name = (await askText('新建清单', '清单名称', '', '创建'))?.trim(); if (!name) return
   try { const item = await api('/lists', { method: 'POST', body: JSON.stringify({ name, folder_id: folderId }) }); lists.value.push(item); await switchView('tasks', item.id); toast('清单已创建') } catch (reason) { fail(reason) }
 }
-async function renameEntity(kind: 'folders' | 'lists', item: FolderItem | TaskList) {
-  const name = (await askText('重命名', kind === 'lists' ? '清单名称' : '文件夹名称', item.name, '保存'))?.trim(); if (!name || name === item.name) return
-  try { const updated = await api(`/${kind}/${item.id}`, { method: 'PATCH', body: JSON.stringify({ name }) }); Object.assign(item, updated); toast('已重命名') } catch (reason) { fail(reason) }
+async function renameFolder(item: FolderItem) {
+  const name = (await askText('重命名', '文件夹名称', item.name, '保存'))?.trim(); if (!name || name === item.name) return
+  try { const updated = await api(`/folders/${item.id}`, { method: 'PATCH', body: JSON.stringify({ name }) }); Object.assign(item, updated); toast('已重命名') } catch (reason) { fail(reason) }
 }
-async function deleteEntity(kind: 'folders' | 'lists', item: FolderItem | TaskList) {
-  if (kind === 'lists') {
-    const answer = await askText(`归档清单「${item.name}」？`, '', '', '归档')
-    if (answer === null) return
-    try {
-      const wasCurrentList = activeView.value === 'tasks' && activeList.value === item.id
-      await api(`/${kind}/${item.id}`, { method: 'DELETE' })
-      await loadArchivedLists()
-      await refreshAll()
-      if (wasCurrentList) {
-        selectedTask.value = null
-        mobileDetail.value = false
-        const inboxId = lists.value.find((list) => list.is_inbox)?.id || ''
-        await switchView('tasks', inboxId)
-      }
-      toast('清单已归档')
-    } catch (reason) { fail(reason) }
-    return
-  }
+async function deleteFolder(item: FolderItem) {
   const answer = await askText(`删除文件夹「${item.name}」？`, '', '', '删除')
   if (answer === null) return
-  try { await api(`/${kind}/${item.id}`, { method: 'DELETE' }); await refreshAll(); toast('已删除') } catch (reason) { fail(reason) }
+  try { await api(`/folders/${item.id}`, { method: 'DELETE' }); await refreshAll(); toast('已删除') } catch (reason) { fail(reason) }
 }
 async function loadArchivedLists() {
   try { archivedLists.value = await api('/lists?archived=true') } catch { archivedLists.value = [] }
@@ -1389,6 +1444,15 @@ async function confirmPurgeList() {
 function toggleSidebarCreate() { sidebarCreateOpen.value = !sidebarCreateOpen.value; sidebarAction.value = null }
 function openSidebarAction(kind: 'folders' | 'lists', item: FolderItem | TaskList) {
   closeArchivedListAction(false)
+  if (kind === 'lists') {
+    sidebarAction.value = null
+    listEditorTarget.value = item as TaskList
+    listEditorName.value = item.name
+    listEditorFolderId.value = (item as TaskList).folder_id ?? ''
+    listEditorError.value = ''
+    sidebarCreateOpen.value = false
+    return
+  }
   sidebarAction.value = sidebarAction.value?.item.id === item.id ? null : { kind, item }
   sidebarCreateOpen.value = false
 }
@@ -1396,7 +1460,76 @@ function runSidebarCreate(kind: 'folder' | 'list') {
   sidebarCreateOpen.value = false
   kind === 'folder' ? void createFolder() : void createList(null)
 }
-function closeSidebarAction() { sidebarAction.value = null; listMoveMenuOpen.value = false }
+function closeSidebarAction() { sidebarAction.value = null }
+function closeListEditor() {
+  if (listEditorBusy.value) return
+  listEditorTarget.value = null
+  listEditorError.value = ''
+}
+async function saveListEditor() {
+  const item = listEditorTarget.value
+  if (!item || listEditorBusy.value) return
+  const normalized = normalizeRequiredName(listEditorName.value)
+  if (normalized.error) { listEditorError.value = normalized.error; return }
+  const name = normalized.value
+  const folderId = listEditorFolderId.value || null
+  listEditorBusy.value = true
+  listEditorError.value = ''
+  let nameSaved = false
+  try {
+    if (name !== item.name) {
+      const updated = await api(`/lists/${item.id}`, { method: 'PATCH', body: JSON.stringify({ name }) })
+      Object.assign(item, updated)
+      nameSaved = true
+    }
+    if (folderId !== item.folder_id) {
+      const previous = lists.value
+      const result = moveListToScope(previous, item.id, folderId)
+      lists.value = result.items
+      try {
+        await api(`/lists/${item.id}/move`, { method: 'PUT', body: JSON.stringify({ folder_id: folderId, list_ids: result.orderedIds }) })
+      } catch (reason) {
+        lists.value = previous
+        throw reason
+      }
+    }
+    listEditorTarget.value = null
+    toast('清单已更新')
+  } catch (reason) {
+    if (nameSaved) {
+      await refreshAll()
+      const current = lists.value.find((list) => list.id === item.id)
+      if (current) {
+        listEditorTarget.value = current
+        listEditorName.value = current.name
+        listEditorFolderId.value = current.folder_id ?? ''
+      }
+      listEditorError.value = '名称已保存，但移动文件夹失败，请重试。'
+    } else listEditorError.value = reason instanceof Error ? reason.message : '保存失败'
+  } finally { listEditorBusy.value = false }
+}
+async function archiveListFromEditor() {
+  const item = listEditorTarget.value
+  if (!item || listEditorBusy.value) return
+  if (!(await confirmAction(`归档清单「${item.name}」？`, '任务会保留，可从“已归档”恢复'))) return
+  listEditorBusy.value = true
+  try {
+    const wasCurrentList = activeView.value === 'tasks' && activeList.value === item.id
+    await api(`/lists/${item.id}`, { method: 'DELETE' })
+    listEditorTarget.value = null
+    await loadArchivedLists()
+    await refreshAll()
+    if (wasCurrentList) {
+      selectedTask.value = null
+      mobileDetail.value = false
+      const inboxId = lists.value.find((list) => list.is_inbox)?.id || ''
+      await switchView('tasks', inboxId)
+    }
+    toast('清单已归档')
+  } catch (reason) {
+    listEditorError.value = reason instanceof Error ? reason.message : '归档失败'
+  } finally { listEditorBusy.value = false }
+}
 function toggleFolder(id: string) { const next = new Set(expandedFolders.value); next.has(id) ? next.delete(id) : next.add(id); expandedFolders.value = next }
 
 function beginListDrag(list: TaskList, pointer: ListDragPointer) {
@@ -1510,44 +1643,35 @@ function cancelListDrag() {
   listDropFolderId.value = undefined
   listReorderTarget.value = ''
 }
-function openListMoveMenu() { listMoveMenuOpen.value = true }
-function closeListMoveMenu() { listMoveMenuOpen.value = false }
-function moveListFromMenu(folderId: string | null) {
-  const item = sidebarAction.value?.kind === 'lists' ? sidebarAction.value.item as TaskList : null
-  if (!item) return
-  listMoveMenuOpen.value = false
-  void persistListMove(item, folderId)
-  closeSidebarAction()
+
+async function scrollToTaskPageStart() {
+  await nextTick()
+  taskListElement.value?.scrollIntoView({ block: 'start' })
 }
-function canMoveListWithinScope(item: TaskList, direction: 'up' | 'down') {
-  return getAdjacentListMove(lists.value, item.id, direction) !== null
-}
-function moveListWithinScope(item: TaskList, direction: 'up' | 'down') {
-  const move = getAdjacentListMove(lists.value, item.id, direction)
-  if (!move) return
-  void persistListMove(item, item.folder_id, move.targetId, move.placement)
-  closeSidebarAction()
-}
-function previousPage() {
+async function previousPage() {
   if (page.value <= 1 || loading.value) return
   page.value -= 1
-  activeView.value === 'trash' ? loadTrash() : isTaskView(activeView.value) ? loadAll() : undefined
+  if (activeView.value === 'trash') await loadTrash()
+  else if (isTaskView(activeView.value)) await loadAll()
+  await scrollToTaskPageStart()
 }
-function nextPage() {
+async function nextPage() {
   if (page.value >= totalPages.value || loading.value) return
   page.value += 1
-  activeView.value === 'trash' ? loadTrash() : isTaskView(activeView.value) ? loadAll() : undefined
+  if (activeView.value === 'trash') await loadTrash()
+  else if (isTaskView(activeView.value)) await loadAll()
+  await scrollToTaskPageStart()
 }
 
 function reconcileDesktopPaneWidths() {
   if (compactLayout.value) return
-  if (selectedTask.value || habitDetailOpen.value) {
+  if (selectedTask.value || habitDetailOpen.value || calendarDetailOpen.value) {
     detailWidth.value = clampDesktopPaneWidth('detail', detailWidth.value, desktopViewportWidth.value, sidebarCollapsed.value ? 0 : sidebarWidth.value)
   }
-  sidebarWidth.value = clampDesktopPaneWidth('sidebar', sidebarWidth.value, desktopViewportWidth.value, selectedTask.value || habitDetailOpen.value ? detailWidth.value : 0)
+  sidebarWidth.value = clampDesktopPaneWidth('sidebar', sidebarWidth.value, desktopViewportWidth.value, selectedTask.value || habitDetailOpen.value || calendarDetailOpen.value ? detailWidth.value : 0)
 }
 
-watch([selectedTask, habitDetailOpen, sidebarCollapsed], reconcileDesktopPaneWidths)
+watch([selectedTask, habitDetailOpen, calendarDetailOpen, sidebarCollapsed], reconcileDesktopPaneWidths)
 
 function handlePaneResizeBlur() { stopPaneResize() }
 
@@ -1602,7 +1726,7 @@ onUnmounted(() => {
       <p v-if="initialized" class="auth-footnote">登录后继续你的清单</p>
     </form>
   </div>
-  <div v-else class="shell" :class="{ 'today-active': activeView==='today', 'sidebar-collapsed': sidebarCollapsed, 'detail-open': Boolean(selectedTask) || habitDetailOpen, 'memo-detail-open': activeView==='memos' && memoDetailOpen, 'mobile-sidebar-open': mobileSidebar, 'pane-resizing': Boolean(resizingPane) }" :style="shellStyle">
+  <div v-else class="shell" :class="{ 'today-active': activeView==='today', 'sidebar-collapsed': sidebarCollapsed, 'detail-open': Boolean(selectedTask) || habitDetailOpen || calendarDetailOpen, 'memo-detail-open': activeView==='memos' && memoDetailOpen, 'mobile-sidebar-open': mobileSidebar, 'pane-resizing': Boolean(resizingPane) }" :style="shellStyle">
     <div v-if="mobileSidebar || mobileDetail" class="scrim" @click="mobileSidebar=false;mobileDetail=false" />
     <aside class="sidebar" :inert="memoBackgroundInert ? true : undefined" :class="{ open: mobileSidebar }" @keydown.esc="sidebarCreateOpen=false;closeArchivedListAction();closeSidebarAction()">
       <div class="brand-row"><div class="brand small brand-lockup"><img class="brand-logo" src="/dodo-logo.svg" alt=""><span class="brand-wordmark">dodo</span></div><button class="icon mobile-only" aria-label="关闭菜单" @click="mobileSidebar=false"><X /></button></div>
@@ -1613,14 +1737,15 @@ onUnmounted(() => {
         <button :class="{ active: activeView==='habits' }" @click="switchView('habits')"><Repeat2 />习惯</button>
         <button :class="{ active: activeView==='countdowns' }" @click="switchView('countdowns')"><CalendarHeart />倒数日</button>
         <button :class="{ active: activeView==='memos' }" @click="switchView('memos')"><StickyNote />备忘录</button>
+        <button :class="{ active: activeView==='calendar' }" @click="switchView('calendar')"><CalendarDays />日历订阅</button>
       </nav>
       <div class="section-title list-root-drop" :class="{'list-drop-target':listDrag&&listDropFolderId===null&&!listReorderTarget}" @pointermove="listDrag&&resolveListDrop($event)"><span>我的清单</span><span class="sidebar-create-wrap"><button class="mini-icon list-create-trigger" aria-label="新建清单或文件夹" :aria-expanded="sidebarCreateOpen" @click="toggleSidebarCreate"><Plus /></button><span v-if="sidebarCreateOpen" class="sidebar-popover sidebar-create-menu"><button @click="runSidebarCreate('list')"><ListTodo/>新建清单</button><button @click="runSidebarCreate('folder')"><Folder/>新建文件夹</button></span></span></div>
       <div class="folders">
         <div v-for="folder in folders" :key="folder.id" class="folder-block" :data-folder-id="folder.id">
           <div class="folder-row" :class="{'list-drop-target':listDrag&&listDropFolderId===folder.id&&!listReorderTarget}" @pointermove="listDrag&&resolveListDrop($event)"><button :title="folder.name" :aria-label="folder.name" @click="toggleFolder(folder.id)"><ChevronDown v-if="expandedFolders.has(folder.id)"/><ChevronRight v-else/><Folder/><span>{{folder.name}}</span></button><span class="row-actions"><button aria-label="打开文件夹操作" :aria-expanded="sidebarAction?.item.id===folder.id" @click="openSidebarAction('folders',folder)"><Ellipsis/></button></span></div>
-          <div v-for="list in lists.filter(l=>l.folder_id===folder.id && !l.is_inbox)" v-show="expandedFolders.has(folder.id)" :key="list.id" :data-list-id="list.id" class="list-row" :class="{active:activeView==='tasks'&&activeList===list.id,'list-dragging':listDrag?.id===list.id,'list-reorder-target':listReorderTarget===list.id&&listDrag?.id!==list.id}" :style="{'--list-drag-y':`${listDrag?.id===list.id?listDrag.offsetY:0}px`}" @pointermove="moveListDrag(list,$event)" @pointerup="finishListDrag(list,$event)" @pointercancel="cancelListDrag"><button class="list-drag-handle" aria-label="拖动清单排序或移动到文件夹" title="长按拖动清单" @pointerdown.stop="startListHandlePress(list,$event)" @pointermove.stop="moveListHandle(list,$event)" @pointerup.stop="finishListDrag(list,$event)" @pointercancel.stop="cancelListDrag"><GripVertical/></button><button class="list-row-main draggable-list-row-main" :title="list.name" :aria-label="list.name" @click="selectListUnlessDragged(list)"><span>{{list.name}}</span></button><span class="row-actions"><button aria-label="打开清单操作" :aria-expanded="sidebarAction?.item.id===list.id" @click="openSidebarAction('lists',list)"><Ellipsis/></button></span></div>
+          <div v-for="list in lists.filter(l=>l.folder_id===folder.id && !l.is_inbox)" v-show="expandedFolders.has(folder.id)" :key="list.id" :data-list-id="list.id" class="list-row" :class="{active:activeView==='tasks'&&activeList===list.id,'list-dragging':listDrag?.id===list.id,'list-reorder-target':listReorderTarget===list.id&&listDrag?.id!==list.id}" :style="{'--list-drag-y':`${listDrag?.id===list.id?listDrag.offsetY:0}px`}" @pointermove="moveListDrag(list,$event)" @pointerup="finishListDrag(list,$event)" @pointercancel="cancelListDrag"><button class="list-drag-handle" aria-label="拖动清单排序或移动到文件夹" title="长按拖动清单" @pointerdown.stop="startListHandlePress(list,$event)" @pointermove.stop="moveListHandle(list,$event)" @pointerup.stop="finishListDrag(list,$event)" @pointercancel.stop="cancelListDrag"><GripVertical/></button><button class="list-row-main draggable-list-row-main" :title="list.name" :aria-label="list.name" @click="selectListUnlessDragged(list)"><span>{{list.name}}</span></button><span class="row-actions"><button aria-label="打开清单操作" :aria-expanded="listEditorTarget?.id===list.id" @click="openSidebarAction('lists',list)"><Ellipsis/></button></span></div>
         </div>
-        <div v-for="list in lists.filter(l=>!l.folder_id&&!l.is_inbox)" :key="list.id" :data-list-id="list.id" class="list-row" :class="{active:activeView==='tasks'&&activeList===list.id,'list-dragging':listDrag?.id===list.id,'list-reorder-target':listReorderTarget===list.id&&listDrag?.id!==list.id}" :style="{'--list-drag-y':`${listDrag?.id===list.id?listDrag.offsetY:0}px`}" @pointermove="moveListDrag(list,$event)" @pointerup="finishListDrag(list,$event)" @pointercancel="cancelListDrag"><button class="list-drag-handle" aria-label="拖动清单排序或移动到文件夹" title="长按拖动清单" @pointerdown.stop="startListHandlePress(list,$event)" @pointermove.stop="moveListHandle(list,$event)" @pointerup.stop="finishListDrag(list,$event)" @pointercancel.stop="cancelListDrag"><GripVertical/></button><button class="list-row-main draggable-list-row-main" :title="list.name" :aria-label="list.name" @click="selectListUnlessDragged(list)"><span>{{list.name}}</span></button><span class="row-actions"><button aria-label="打开清单操作" :aria-expanded="sidebarAction?.item.id===list.id" @click="openSidebarAction('lists',list)"><Ellipsis/></button></span></div>
+        <div v-for="list in lists.filter(l=>!l.folder_id&&!l.is_inbox)" :key="list.id" :data-list-id="list.id" class="list-row" :class="{active:activeView==='tasks'&&activeList===list.id,'list-dragging':listDrag?.id===list.id,'list-reorder-target':listReorderTarget===list.id&&listDrag?.id!==list.id}" :style="{'--list-drag-y':`${listDrag?.id===list.id?listDrag.offsetY:0}px`}" @pointermove="moveListDrag(list,$event)" @pointerup="finishListDrag(list,$event)" @pointercancel="cancelListDrag"><button class="list-drag-handle" aria-label="拖动清单排序或移动到文件夹" title="长按拖动清单" @pointerdown.stop="startListHandlePress(list,$event)" @pointermove.stop="moveListHandle(list,$event)" @pointerup.stop="finishListDrag(list,$event)" @pointercancel.stop="cancelListDrag"><GripVertical/></button><button class="list-row-main draggable-list-row-main" :title="list.name" :aria-label="list.name" @click="selectListUnlessDragged(list)"><span>{{list.name}}</span></button><span class="row-actions"><button aria-label="打开清单操作" :aria-expanded="listEditorTarget?.id===list.id" @click="openSidebarAction('lists',list)"><Ellipsis/></button></span></div>
         <div class="archived-lists">
           <button ref="archivedListsToggle" class="archived-lists-toggle" :class="{ empty: archivedLists.length === 0 }" :aria-expanded="archivedLists.length > 0 && archivedListsExpanded" aria-controls="archived-task-lists" :disabled="archivedLists.length === 0" @click="toggleArchivedLists"><ChevronRight :class="{ expanded: archivedListsExpanded }"/><span>已归档 {{ archivedLists.length }}</span></button>
           <div id="archived-task-lists" v-show="archivedListsExpanded" class="archived-list-items">
@@ -1634,42 +1759,33 @@ onUnmounted(() => {
       </nav>
       <AppSheet :open="Boolean(sidebarAction)" variant="actions" panel-class="sidebar-action-sheet" :label="sidebarAction ? `${sidebarAction.item.name}操作` : undefined" initial-focus=".app-sheet__header button" @close="closeSidebarAction">
         <template v-if="sidebarAction">
-          <template v-if="!listMoveMenuOpen">
-            <header class="app-sheet__header sidebar-action-header">
-              <div><span class="sidebar-action-kind">{{sidebarAction.kind==='folders'?'文件夹':'清单'}}</span><b>{{sidebarAction.item.name}}</b></div>
-              <button class="icon" :aria-label="`关闭${sidebarAction.kind==='folders'?'文件夹':'清单'}操作`" @click="closeSidebarAction"><X/></button>
-            </header>
-            <div class="app-sheet__body sidebar-action-body">
-              <section class="sidebar-action-group" aria-label="常用操作">
-                <span class="sidebar-action-group-title">常用操作</span>
-                <button @click="renameEntity(sidebarAction.kind,sidebarAction.item);closeSidebarAction()"><Pencil/><span>重命名</span></button>
-                <button v-if="sidebarAction.kind==='folders'" @click="createList(sidebarAction.item.id);closeSidebarAction()"><Plus/><span>新建清单</span></button>
-              </section>
-              <section v-if="sidebarAction.kind==='lists'" class="sidebar-action-group" aria-label="整理清单">
-                <span class="sidebar-action-group-title">整理清单</span>
-                <button aria-label="上移清单" :disabled="!canMoveListWithinScope(sidebarAction.item as TaskList, 'up')" @click="moveListWithinScope(sidebarAction.item as TaskList, 'up')"><ChevronDown class="sidebar-action-up"/><span>上移</span></button>
-                <button aria-label="下移清单" :disabled="!canMoveListWithinScope(sidebarAction.item as TaskList, 'down')" @click="moveListWithinScope(sidebarAction.item as TaskList, 'down')"><ChevronDown/><span>下移</span></button>
-                <button aria-label="移动到文件夹" aria-haspopup="menu" :aria-expanded="listMoveMenuOpen" @click="openListMoveMenu"><Folder/><span>{{(sidebarAction.item as TaskList).folder_id?'更改所在文件夹':'移动到文件夹'}}</span><ChevronRight class="sidebar-action-chevron"/></button>
-              </section>
-              <section class="sidebar-action-danger">
-                <span>{{sidebarAction.kind==='folders' ? `删除后，其中 ${sidebarActionFolderListCount} 个清单会移到“我的清单”` : '任务会保留，可从“已归档”恢复'}}</span>
-                <button class="danger" @click="deleteEntity(sidebarAction.kind,sidebarAction.item);closeSidebarAction()"><component :is="sidebarAction.kind==='folders' ? Trash2 : ArchiveRestore"/><span>{{sidebarAction.kind==='folders'?'删除文件夹':'归档清单'}}</span></button>
-              </section>
-            </div>
-          </template>
-          <template v-if="listMoveMenuOpen">
-            <header class="app-sheet__header sidebar-action-move-view">
-              <button class="sidebar-action-move-back" aria-label="返回清单操作" @click="closeListMoveMenu"><ChevronRight/></button>
-              <div><span class="sidebar-action-kind">清单位置</span><b class="sidebar-action-move-title">选择目标位置</b></div>
-              <button class="icon" aria-label="关闭清单操作" @click="closeSidebarAction"><X/></button>
-            </header>
-            <div class="app-sheet__body sidebar-action-body">
-              <div class="list-move-menu" role="menu" aria-label="选择目标文件夹">
-                <button role="menuitem" :class="{'list-move-current':!(sidebarAction.item as TaskList).folder_id}" :disabled="!(sidebarAction.item as TaskList).folder_id" @click="moveListFromMenu(null)"><ListTodo/><span>我的清单</span><Check v-if="!(sidebarAction.item as TaskList).folder_id"/></button>
-                <button v-for="folder in folders" :key="folder.id" role="menuitem" :class="{'list-move-current':(sidebarAction.item as TaskList).folder_id===folder.id}" :disabled="(sidebarAction.item as TaskList).folder_id===folder.id" @click="moveListFromMenu(folder.id)"><Folder/><span>{{folder.name}}</span><Check v-if="(sidebarAction.item as TaskList).folder_id===folder.id"/></button>
-              </div>
-            </div>
-          </template>
+          <header class="app-sheet__header sidebar-action-header">
+            <div><span class="sidebar-action-kind">文件夹</span><b>{{sidebarAction.item.name}}</b></div>
+            <button class="icon" aria-label="关闭文件夹操作" @click="closeSidebarAction"><X/></button>
+          </header>
+          <div class="app-sheet__body sidebar-action-body">
+            <section class="sidebar-action-group" aria-label="常用操作">
+              <span class="sidebar-action-group-title">常用操作</span>
+              <button @click="renameFolder(sidebarAction.item as FolderItem);closeSidebarAction()"><Pencil/><span>重命名</span></button>
+              <button @click="createList(sidebarAction.item.id);closeSidebarAction()"><Plus/><span>新建清单</span></button>
+            </section>
+            <section class="sidebar-action-danger">
+              <span>删除后，其中 {{sidebarActionFolderListCount}} 个清单会移到“我的清单”</span>
+              <button class="danger" @click="deleteFolder(sidebarAction.item as FolderItem);closeSidebarAction()"><Trash2/><span>删除文件夹</span></button>
+            </section>
+          </div>
+        </template>
+      </AppSheet>
+      <AppSheet :open="Boolean(listEditorTarget)" variant="actions" panel-class="list-editor-sheet" title-id="list-editor-title" initial-focus=".list-editor-name" :busy="listEditorBusy" @close="closeListEditor" @submit.prevent="saveListEditor">
+        <template v-if="listEditorTarget">
+          <header class="app-sheet__header list-editor-header"><div><h2 id="list-editor-title">编辑清单</h2></div><button class="icon" type="button" :disabled="listEditorBusy" aria-label="关闭编辑清单" @click="closeListEditor"><X/></button></header>
+          <div class="app-sheet__body list-editor-form">
+            <label>清单名称<input v-model="listEditorName" class="list-editor-name" autocomplete="off" maxlength="80" :aria-invalid="Boolean(listEditorError)" @input="listEditorError=''"/><small>名称最多 80 个字符</small></label>
+            <label>所在文件夹<select v-model="listEditorFolderId"><option value="">不放入文件夹</option><option v-for="folder in folders" :key="folder.id" :value="folder.id">{{folder.name}}</option></select></label>
+            <p v-if="listEditorError" class="list-editor-error" role="alert">{{listEditorError}}</p>
+            <section class="list-editor-danger"><div><b>归档清单</b><small>任务会保留，可从“已归档”恢复</small></div><button type="button" class="danger-button" :disabled="listEditorBusy" @click="archiveListFromEditor"><ArchiveRestore/>归档</button></section>
+          </div>
+          <footer class="app-sheet__footer list-editor-footer"><button type="button" class="secondary" :disabled="listEditorBusy" @click="closeListEditor">取消</button><button class="primary-small" :disabled="listEditorBusy || !listEditorName.trim()">{{listEditorBusy?'正在保存…':'保存更改'}}</button></footer>
         </template>
       </AppSheet>
     </aside>
@@ -1678,12 +1794,13 @@ onUnmounted(() => {
     <main :class="{'today-main':activeView==='today','list-main':activeView==='tasks'||activeView==='upcoming'||activeView==='habits'}">
       <header class="topbar" :class="{'settings-topbar':activeView==='settings'}" :inert="memoBackgroundInert ? true : undefined">
         <button class="icon" :aria-label="(sidebarCollapsed ? '展开' : '收起') + '菜单'" :aria-expanded="sidebarCollapsed ? 'false' : 'true'" @click="toggleSidebar"><Menu /></button>
-        <div v-if="!['today','tasks','upcoming','habits','settings'].includes(activeView)" class="topbar-title"><h1 :title="activeName">{{ activeName }}</h1></div>
+        <div v-if="!['today','tasks','upcoming','trash','habits','settings'].includes(activeView)" class="topbar-title"><h1 :title="activeName">{{ activeName }}</h1></div>
       </header>
       <template v-if="['habits','settings'].includes(activeView)">
         <MvpPanel ref="habitComposer" :key="activeView" :view="activeView as 'habits'|'settings'" :show-completed="showCompleted" :compact-layout="compactLayout" @update:show-completed="showCompleted=$event" @detail="handleHabitDetail" @changed="refreshAll" @notice="toast" @logout="completeLogout" />
       </template>
       <MemoPanel v-else-if="activeView==='memos'" ref="memoPanel" :request="api" @scope="memoTrash=$event==='trash'" @detail="memoDetailOpen=$event" @notice="toast" />
+      <CalendarPanel v-else-if="activeView==='calendar'" :compact-layout="compactLayout" @detail="calendarDetailOpen=$event" @notice="toast" />
       <CountdownPanel ref="countdownComposer" v-else-if="activeView==='countdowns'" @notice="toast" />
       <template v-else>
         <section v-if="activeView==='today'" class="today-context" aria-label="今日概览">
@@ -1708,22 +1825,36 @@ onUnmounted(() => {
           </section>
           <button id="today-tasks-heading" class="today-section-toggle today-section-anchor" type="button" :aria-expanded="!todaySectionCollapse.tasks" aria-controls="today-tasks" @click="toggleTodaySection('tasks')"><span class="today-section-title">今天</span><span class="today-section-summary">{{totalTasks}}</span><span class="today-section-chevron" aria-hidden="true">{{ todaySectionCollapse.tasks ? '›' : '⌄' }}</span></button>
         </template>
+        <section v-if="activeView==='trash'" class="trash-page-context">
+          <div><h1 ref="trashPageTitle" class="trash-page-title" tabindex="-1">回收站</h1><p class="trash-page-summary">删除的任务保留在这里，可整组恢复或永久删除。</p></div>
+          <span class="trash-page-count">共 {{totalTasks}} 项</span>
+        </section>
         <div v-if="activeView==='tasks' || activeView==='upcoming'" id="task-list-heading" class="list-section-heading"><span id="task-list-title" class="list-section-title">任务</span><span class="list-section-count">{{ totalTasks }}</span><button v-if="activeView==='tasks' && taskReorderAvailable" class="list-section-action" type="button" :aria-pressed="taskReorderMode" @click="taskReorderMode=!taskReorderMode;cancelTaskReorder()">{{ taskReorderMode ? '完成' : '调整顺序' }}</button></div>
-      <div v-if="activeView==='trash'" class="list-toolbar"><span v-if="activeView==='trash' || totalPages > 1 || totalTasks > 0">{{ totalPages > 1 ? `第 ${page} / ${totalPages} 页 · ` : '' }}共 {{totalTasks}} 项</span><span class="list-toolbar-actions"><button v-if="taskReorderAvailable" class="soft-button reorder-mode-toggle task-reorder-toggle" type="button" :aria-pressed="taskReorderMode" @click="taskReorderMode=!taskReorderMode;cancelTaskReorder()">{{ taskReorderMode ? '完成' : '调整顺序' }}</button></span></div>
-      <div v-if="activeView==='tasks' && totalPages > 1" class="list-page-meta"><span>第 {{ page }} / {{ totalPages }} 页 · 共 {{ totalTasks }} 项</span></div>
-      <div v-if="activeView!=='trash' && totalPages > 1" class="pager"><button class="secondary" :disabled="page<=1 || loading" @click="previousPage">上一页</button><span>{{page}} / {{totalPages}}</span><button class="secondary" :disabled="page>=totalPages || loading" @click="nextPage">下一页</button></div>
-      <section :id="activeView==='today' ? 'today-tasks' : undefined" class="task-list plain-list" :class="{loading}" v-show="activeView!=='today' || !todaySectionCollapse.tasks" :role="activeView==='today' ? 'region' : undefined" :aria-labelledby="activeView==='today' ? 'today-tasks-heading' : (activeView==='tasks' || activeView==='upcoming') ? 'task-list-title' : undefined">
-        <template v-for="node in taskTree" :key="node.task.id">
-          <article :data-task-id="node.task.id" class="task-row swipeable" :class="{done:node.task.completed,'task-row--trash':activeView==='trash','just-completed': justCompletedTaskIds.has(node.task.id),'completion-exiting':completionExitingTaskIds.has(node.task.id),selected:selectedTask?.id===node.task.id,ready:Math.abs(taskSwipeOffsets[node.task.id] ?? 0) >= 64,reordering:taskReorder?.id===node.task.id,'reorder-target':taskReorderTarget===node.task.id}" :style="{ '--swipe-x': `${taskSwipeOffsets[node.task.id] ?? 0}px`, '--reorder-y': `${taskReorder?.id === node.task.id ? taskReorder.offsetY : 0}px` }" @pointerdown="startTaskPointer(node.task, $event)" @pointermove="moveTaskPointer(node.task, $event)" @pointerup="finishTaskPointer(node.task, $event)" @pointercancel="cancelTaskPointer(node.task)" @touchstart.passive="startTaskSwipe(node.task, $event)" @touchmove.passive="moveTaskSwipe(node.task, $event)" @touchend="finishTaskSwipe(node.task, $event)" @touchcancel="cancelTaskSwipe(node.task)">
-            <button v-if="taskReorderMode" class="drag-handle task-drag-handle" :disabled="totalPages > 1" aria-label="上下拖动任务排序" title="上下拖动排序" @pointerdown.stop="startTaskReorder(node.task, $event)" @pointermove.stop="moveTaskReorder(node.task, $event)" @pointerup.stop="finishTaskReorder(node.task, $event)" @pointercancel.stop="cancelTaskReorder"><GripVertical/></button>
-            <button v-if="activeView!=='trash'" class="task-check" :aria-label="node.task.completed ? `重新打开${node.task.title}` : `完成${node.task.title}`" :aria-pressed="node.task.completed" @click.stop="toggle(node.task)"><span class="task-check-mark" :class="`p${node.task.priority}`"><Check v-if="node.task.completed" /></span></button>
-            <div class="task-main" :role="activeView==='trash' ? undefined : 'button'" :tabindex="activeView==='trash' ? undefined : 0" @click="activeView==='trash'?undefined:selectTaskUnlessSwiped(node.task)" @keydown.enter="activeView==='trash'?undefined:selectTaskUnlessSwiped(node.task)" @keydown.space.prevent="activeView==='trash'?undefined:selectTaskUnlessSwiped(node.task)"><strong :title="node.task.title">{{node.task.title}}</strong><span v-if="node.subtasks.length" class="meta"><span class="meta-item"><ListChecks/>{{node.subtasks.filter(t=>t.completed).length}}/{{node.subtasks.length}}</span></span><span v-if="node.task.priority" class="priority" :class="`p${node.task.priority}`">{{['','低','中','高'][node.task.priority]}}</span></div>
-            <span v-if="node.task.due_at" class="task-tail"><TaskDueDisplay :due-at="node.task.due_at" :due-has-time="node.task.due_has_time" :completed="node.task.completed" :now-ms="taskDueNowMs" /></span><span v-if="activeView==='trash'" class="task-actions"><button class="restore" @click.stop="restoreTask(node.task)"><ArchiveRestore/>恢复</button><button class="icon danger ghost" aria-label="永久删除" @click.stop="purgeTask(node.task)"><X/></button></span>
-          </article>
-        </template>
-        <div v-if="activeView==='today' && hiddenCompletedTaskCount > 0 && !visibleTasks.length && !loading" class="today-filtered-empty-note"><span>已隐藏已完成任务</span><button type="button" class="link" @click="showCompleted=true">显示</button></div>
-        <div v-else-if="!visibleTasks.length&&!loading" class="empty"><ListTodo/><b>{{ hiddenCompletedTaskCount > 0 ? '已完成任务已隐藏' : '这里还很安静' }}</b><span>{{hiddenCompletedTaskCount > 0 ? '开启“显示已完成”即可查看。':'写下第一件想完成的小事吧'}}</span></div>
-      </section>
+        <section v-if="activeView==='trash' && visibleTasks.length" ref="taskListElement" class="trash-groups" aria-label="回收站任务分组">
+          <section v-for="group in trashGroups" :key="group.key" class="trash-group" :aria-labelledby="`trash-group-${group.key}`">
+            <header class="trash-group-heading"><h2 :id="`trash-group-${group.key}`">{{group.label}}</h2><span>{{group.nodes.length}}</span></header>
+            <div class="task-list plain-list trash-list">
+              <article v-for="node in group.nodes" :key="node.task.id" :data-task-id="node.task.id" class="task-row task-row--trash">
+                <div class="task-main"><strong :title="node.task.title">{{node.task.title}}</strong><span v-if="node.subtasks.length" class="meta"><span class="meta-item"><ListChecks/>含 {{node.subtasks.length}} 个子任务，整组处理</span></span></div>
+                <span v-if="node.task.due_at" class="task-tail"><TaskDueDisplay :due-at="node.task.due_at" :due-has-time="node.task.due_has_time" :completed="node.task.completed" :now-ms="taskDueNowMs" /></span>
+                <span class="task-actions"><button class="icon ghost trash-more" aria-label="打开任务操作" aria-haspopup="menu" :aria-expanded="trashAction?.id===node.task.id" :title="`${node.task.title}操作`" @click.stop="openTrashAction(node.task,$event)"><Ellipsis/></button></span>
+              </article>
+            </div>
+          </section>
+        </section>
+        <section v-else :id="activeView==='today' ? 'today-tasks' : undefined" class="task-list plain-list" :class="{loading}" v-show="activeView!=='today' || !todaySectionCollapse.tasks" :role="activeView==='today' ? 'region' : undefined" :aria-labelledby="activeView==='today' ? 'today-tasks-heading' : (activeView==='tasks' || activeView==='upcoming') ? 'task-list-title' : undefined" ref="taskListElement">
+          <template v-for="node in taskTree" :key="node.task.id">
+            <article :data-task-id="node.task.id" class="task-row swipeable" :class="{done:node.task.completed,'just-completed': justCompletedTaskIds.has(node.task.id),'completion-exiting':completionExitingTaskIds.has(node.task.id),selected:selectedTask?.id===node.task.id,ready:Math.abs(taskSwipeOffsets[node.task.id] ?? 0) >= 64,reordering:taskReorder?.id===node.task.id,'reorder-target':taskReorderTarget===node.task.id}" :style="{ '--swipe-x': `${taskSwipeOffsets[node.task.id] ?? 0}px`, '--reorder-y': `${taskReorder?.id === node.task.id ? taskReorder.offsetY : 0}px` }" @pointerdown="startTaskPointer(node.task, $event)" @pointermove="moveTaskPointer(node.task, $event)" @pointerup="finishTaskPointer(node.task, $event)" @pointercancel="cancelTaskPointer(node.task)" @touchstart.passive="startTaskSwipe(node.task, $event)" @touchmove.passive="moveTaskSwipe(node.task, $event)" @touchend="finishTaskSwipe(node.task, $event)" @touchcancel="cancelTaskSwipe(node.task)">
+              <button v-if="taskReorderMode" class="drag-handle task-drag-handle" :disabled="totalPages > 1" aria-label="上下拖动任务排序" title="上下拖动排序" @pointerdown.stop="startTaskReorder(node.task, $event)" @pointermove.stop="moveTaskReorder(node.task, $event)" @pointerup.stop="finishTaskReorder(node.task, $event)" @pointercancel.stop="cancelTaskReorder"><GripVertical/></button>
+              <button class="task-check" :aria-label="node.task.completed ? `重新打开${node.task.title}` : `完成${node.task.title}`" :aria-pressed="node.task.completed" @click.stop="toggle(node.task)"><span class="task-check-mark" :class="`p${node.task.priority}`"><Check v-if="node.task.completed" /></span></button>
+              <div class="task-main" role="button" tabindex="0" @click="selectTaskUnlessSwiped(node.task)" @keydown.enter="selectTaskUnlessSwiped(node.task)" @keydown.space.prevent="selectTaskUnlessSwiped(node.task)"><strong :title="node.task.title">{{node.task.title}}</strong><span v-if="node.subtasks.length" class="meta"><span class="meta-item"><ListChecks/>{{node.subtasks.filter(t=>t.completed).length}}/{{node.subtasks.length}}</span></span><span v-if="node.task.priority" class="priority" :class="`p${node.task.priority}`">{{['','低','中','高'][node.task.priority]}}</span></div>
+              <span v-if="node.task.due_at" class="task-tail"><TaskDueDisplay :due-at="node.task.due_at" :due-has-time="node.task.due_has_time" :completed="node.task.completed" :now-ms="taskDueNowMs" /></span>
+            </article>
+          </template>
+          <div v-if="activeView==='today' && hiddenCompletedTaskCount > 0 && !visibleTasks.length && !loading" class="today-filtered-empty-note"><span>已隐藏已完成任务</span><button type="button" class="link" @click="showCompleted=true">显示</button></div>
+          <div v-else-if="!visibleTasks.length&&!loading" class="empty"><ListTodo/><b>{{ activeView==='trash' ? '回收站是空的' : hiddenCompletedTaskCount > 0 ? '已完成任务已隐藏' : '这里还很安静' }}</b><span>{{activeView==='trash' ? '删除的任务会显示在这里' : hiddenCompletedTaskCount > 0 ? '开启“显示已完成”即可查看。':'写下第一件想完成的小事吧'}}</span></div>
+        </section>
+      <nav v-if="totalPages > 1 && (activeView!=='today' || !todaySectionCollapse.tasks)" class="pager" aria-label="任务分页"><button class="pager-button pager-button--previous" :disabled="page<=1 || loading" aria-label="上一页" @click="previousPage"><ChevronLeft aria-hidden="true"/><span>上一页</span></button><span class="pager-status" aria-live="polite"><strong>{{page}} / {{totalPages}}</strong><span>共 {{ totalTasks }} 项</span></span><button class="pager-button pager-button--next" :disabled="page>=totalPages || loading" aria-label="下一页" @click="nextPage"><span>下一页</span><ChevronRight aria-hidden="true"/></button></nav>
       <div v-if="activeView==='today'" class="today-habits-section today-section-anchor">
         <button id="today-habits-heading" class="today-section-toggle" type="button" :aria-expanded="!todaySectionCollapse.habits" aria-controls="today-habits" @click="toggleTodaySection('habits')"><span class="today-section-title">习惯</span><span class="today-section-summary">{{todayHabitTotal}}</span><span class="today-section-chevron" aria-hidden="true">{{ todaySectionCollapse.habits ? '›' : '⌄' }}</span></button>
         <div v-show="!todaySectionCollapse.habits" id="today-habits" role="region" aria-labelledby="today-habits-heading">
@@ -1732,7 +1863,7 @@ onUnmounted(() => {
       </div>
       </template>
     </main>
-    <div v-if="selectedTask || habitDetailOpen" class="pane-resizer pane-resizer--detail" role="separator" :aria-label="detailSeparatorLabel" aria-orientation="vertical" aria-valuemin="300" :aria-valuemax="detailMaxWidth" :aria-valuenow="detailWidth" tabindex="0" @pointerdown="startPaneResize('detail',$event)" @lostpointercapture="handlePaneLostPointerCapture" @keydown="resizePaneWithKeyboard('detail',$event)" />
+    <div v-if="selectedTask || habitDetailOpen || calendarDetailOpen" class="pane-resizer pane-resizer--detail" role="separator" :aria-label="detailSeparatorLabel" aria-orientation="vertical" aria-valuemin="300" :aria-valuemax="detailMaxWidth" :aria-valuenow="detailWidth" tabindex="0" @pointerdown="startPaneResize('detail',$event)" @lostpointercapture="handlePaneLostPointerCapture" @keydown="resizePaneWithKeyboard('detail',$event)" />
 
     <AppSheet v-if="selectedTask" :open="true" :modal="compactLayout" variant="detail" panel-class="detail" title-id="task-detail-title" :close-on-scrim="compactLayout" :busy="taskDetailBusy" @close="closeTaskDetail" @submit.prevent="saveSelectedTaskChanges">
       <div class="detail-head"><span id="task-detail-title">任务详情</span><button class="icon" type="button" :disabled="taskDetailBusy" aria-label="关闭详情" @click="closeTaskDetail"><X/></button></div>
@@ -1745,7 +1876,7 @@ onUnmounted(() => {
             <div class="task-detail-field"><span class="task-detail-field-label">时间</span><button v-if="selectedDueDate && !selectedDueHasTime" class="task-compose-time-add task-detail-time-control" type="button" @click="addSelectedDueTime">添加时间</button><label v-else-if="selectedDueDate" class="task-compose-time-chip task-detail-time-control"><input ref="selectedDueTimePicker" v-model="selectedDueTime" type="time" aria-label="选择截止时间"><button class="task-compose-time-remove" type="button" aria-label="移除时间" @click.prevent="selectedDueHasTime=false"><X/></button></label><span v-else class="task-detail-time-empty" aria-hidden="true">—</span></div>
           </div>
           <label class="task-detail-field"><span class="task-detail-field-label">重复</span><select v-model="selectedTaskRepeat" class="task-detail-field-input" :disabled="!selectedDueDate"><option value="none">不重复</option><option value="daily">每天</option><option value="weekly">每周</option><option value="monthly">每月</option><option value="yearly">每年</option><option value="after_completion">完成后重复</option><option value="custom">自定义…</option></select><small v-if="!selectedDueDate" class="field-hint">请先设置截止时间，才能开启重复</small></label>
-          <section v-if="selectedTaskRepeat==='after_completion'" class="after-completion-fields"><div>完成后 <input v-model="selectedAfterCompletionDays" type="number" min="1" max="3650" step="1" inputmode="numeric" aria-label="完成后重复天数"> 天重复</div><small>每次完成后，将截止时间顺延对应天数；首版永不结束</small></section>
+          <section v-if="selectedTaskRepeat==='after_completion'" class="after-completion-fields"><div>完成后 <input v-model="selectedAfterCompletionDays" type="number" min="1" max="3650" step="1" inputmode="numeric" aria-label="完成后重复间隔"><select v-model="selectedAfterCompletionUnit" aria-label="完成后重复单位"><option value="days">天</option><option value="months">月</option></select>重复</div><small>每次完成后，将截止日期按所选间隔顺延；月末会自动取目标月最后一天</small></section>
           <section v-if="selectedTaskRepeat==='custom'" class="repeat-custom-fields"><div><span>每隔</span><input v-model.number="selectedRepeatConfig.interval" type="number" min="1"><select v-model="selectedRepeatConfig.frequency"><option value="daily">天</option><option value="weekly">周</option><option value="monthly">月</option><option value="yearly">年</option></select></div><label v-if="selectedRepeatConfig.frequency==='weekly'">重复日期<span class="weekday-picker"><label v-for="day in weekdayOptions" :key="day.value"><input v-model="selectedRepeatConfig.weekdays" type="checkbox" :value="day.value">{{day.label}}</label></span></label><label v-if="selectedRepeatConfig.frequency==='monthly'">每月日期<input v-model="selectedRepeatConfig.monthDays" placeholder="例如 1,15,31" @change="selectedRepeatConfig.monthDays=String(($event.target as HTMLInputElement).value).split(',').map(Number).filter(Boolean)"></label><label>结束方式<select v-model="selectedRepeatConfig.endMode"><option value="never">永不结束</option><option value="date">指定日期</option><option value="count">重复次数</option></select></label><label v-if="selectedRepeatConfig.endMode==='date'">结束日期<input v-model="selectedRepeatConfig.until" type="date"></label><label v-if="selectedRepeatConfig.endMode==='count'">重复次数<input v-model.number="selectedRepeatConfig.count" type="number" min="1"></label></section>
           <small v-if="selectedRepeatError" role="alert" class="field-error">{{selectedRepeatError}}</small>
         </section>
@@ -1765,7 +1896,7 @@ onUnmounted(() => {
       <footer class="detail-actions"><button class="danger-text detail-trash" type="button" :disabled="taskDetailBusy" @click="removeTask(selectedTask)"><Trash2/>移到回收站</button><button class="primary detail-save" type="submit" :disabled="taskDetailBusy">{{savingSelectedTask?'正在保存…':recurrenceLoading?'正在读取…':'保存更改'}}</button></footer>
     </AppSheet>
 
-    <nav class="bottom" :inert="memoBackgroundInert ? true : undefined" aria-label="主要导航"><button :class="{active:activeView==='today'}" :aria-current="activeView==='today' ? 'page' : undefined" @click="switchView('today')"><ListTodo/><span>今天</span></button><button :class="{active:activeView==='habits'}" :aria-current="activeView==='habits' ? 'page' : undefined" @click="switchView('habits')"><Repeat2/><span>习惯</span></button><button :class="{active:activeView==='countdowns'}" :aria-current="activeView==='countdowns' ? 'page' : undefined" @click="switchView('countdowns')"><CalendarHeart/><span>倒数日</span></button><button :class="{active:activeView==='settings'}" :aria-current="activeView==='settings' ? 'page' : undefined" @click="switchView('settings')"><Settings/><span>设置</span></button></nav>
+    <nav class="bottom" :inert="memoBackgroundInert ? true : undefined" aria-label="主要导航"><button :class="{active:activeView==='today'}" :aria-current="activeView==='today' ? 'page' : undefined" @click="switchView('today')"><ListTodo/><span>今天</span></button><button :class="{active:activeView==='habits'}" :aria-current="activeView==='habits' ? 'page' : undefined" @click="switchView('habits')"><Repeat2/><span>习惯</span></button><button :class="{active:activeView==='countdowns'}" :aria-current="activeView==='countdowns' ? 'page' : undefined" @click="switchView('countdowns')"><CalendarHeart/><span>倒数日</span></button><button :class="{active:activeView==='memos'}" :aria-current="activeView==='memos' ? 'page' : undefined" @click="switchView('memos')"><StickyNote/><span>备忘录</span></button><button :class="{active:activeView==='calendar'}" :aria-current="activeView==='calendar' ? 'page' : undefined" @click="switchView('calendar')"><CalendarDays/><span>日历订阅</span></button></nav>
     <FloatingAddButton v-if="['tasks','today','upcoming','habits','countdowns','memos'].includes(activeView)" :show="showFloatingAdd" :label="activeView==='habits' ? '添加习惯' : activeView==='countdowns' ? '添加倒数日' : activeView==='memos' ? '添加备忘录' : '添加任务'" @activate="activateFloatingAdd" />
     <AppSheet :open="taskComposeOpen" variant="create" panel-class="task-compose-sheet" title-id="task-compose-title" initial-focus=".task-compose-input" :style="taskComposeStyle" @close="closeTaskCompose" @submit.prevent="submitTaskCompose">
           <header class="app-sheet__header"><div><h2 id="task-compose-title">{{ taskComposeTitle }}</h2></div><button class="icon" type="button" aria-label="关闭添加任务" @click="closeTaskCompose"><X/></button></header>
@@ -1784,7 +1915,7 @@ onUnmounted(() => {
             <label v-else-if="composeDueAt" class="task-compose-time-chip"><span>时间</span><input ref="composeTimePicker" v-model="composeTime" type="time" aria-label="选择截止时间"><button class="task-compose-time-remove" type="button" aria-label="移除时间" @click.prevent="composeHasTime=false"><X/></button></label>
           </div>
           <label>重复<select v-model="composeRepeat" :disabled="!composeDueAt"><option value="none">不重复</option><option value="daily">每天</option><option value="weekly">每周</option><option value="monthly">每月</option><option value="yearly">每年</option><option value="after_completion">完成后重复</option><option value="custom">自定义…</option></select><small v-if="!composeDueAt" class="field-hint">请先设置截止时间，才能开启重复</small></label>
-          <section v-if="composeRepeat==='after_completion'" class="after-completion-fields"><div>完成后 <input v-model="composeAfterCompletionDays" type="number" min="1" max="3650" step="1" inputmode="numeric" aria-label="完成后重复天数"> 天重复</div><small>每次完成后，将截止时间顺延对应天数；首版永不结束</small></section>
+          <section v-if="composeRepeat==='after_completion'" class="after-completion-fields"><div>完成后 <input v-model="composeAfterCompletionDays" type="number" min="1" max="3650" step="1" inputmode="numeric" aria-label="完成后重复间隔"><select v-model="composeAfterCompletionUnit" aria-label="完成后重复单位"><option value="days">天</option><option value="months">月</option></select>重复</div><small>每次完成后，将截止日期按所选间隔顺延；月末会自动取目标月最后一天</small></section>
           <small v-if="composeRepeatError" role="alert" class="field-error">{{composeRepeatError}}</small>
           <section v-if="composeRepeat==='custom'" class="repeat-custom-fields"><div><span>每隔</span><input v-model.number="composeRepeatConfig.interval" type="number" min="1"><select v-model="composeRepeatConfig.frequency"><option value="daily">天</option><option value="weekly">周</option><option value="monthly">月</option><option value="yearly">年</option></select></div><label v-if="composeRepeatConfig.frequency==='weekly'">重复日期<span class="weekday-picker"><label v-for="day in weekdayOptions" :key="day.value"><input v-model="composeRepeatConfig.weekdays" type="checkbox" :value="day.value">{{day.label}}</label></span></label><label v-if="composeRepeatConfig.frequency==='monthly'">每月日期<input v-model.number="composeRepeatConfig.monthDays![0]" type="number" min="1" max="31"></label><label>结束方式<select v-model="composeRepeatConfig.endMode"><option value="never">永不结束</option><option value="date">指定日期</option><option value="count">重复次数</option></select></label><label v-if="composeRepeatConfig.endMode==='date'">结束日期<input v-model="composeRepeatConfig.until" type="date"></label><label v-if="composeRepeatConfig.endMode==='count'">重复次数<input v-model.number="composeRepeatConfig.count" type="number" min="1"></label></section>
           <label>备注<textarea v-model="composeDescription" rows="3" placeholder="可选，支持 Markdown"/></label>
@@ -1794,6 +1925,7 @@ onUnmounted(() => {
     <Transition name="toast"><div v-if="notice" class="toast" role="status">{{notice}}</div></Transition>
     <div v-if="error" class="error-toast" role="alert">{{error}}<button @click="error=''"><X/></button></div>
     <Teleport to="body">
+      <span v-if="trashAction" class="trash-action-mask" @click.self="closeTrashAction()"><span ref="trashMenu" class="trash-action-menu" role="menu" aria-label="回收站任务操作" @keydown.esc.stop="closeTrashAction()" @keydown.tab.prevent="moveTrashMenuFocus($event.shiftKey?-1:1)" @keydown.down.prevent="moveTrashMenuFocus(1)" @keydown.up.prevent="moveTrashMenuFocus(-1)"><span class="trash-action-title" :title="trashAction.title">{{trashAction.title}}</span><button role="menuitem" @click="requestRestoreTask"><ArchiveRestore/>恢复</button><button role="menuitem" class="danger-text" @click="requestPurgeTask"><Trash2/>永久删除</button></span></span>
       <span v-if="archivedListAction" class="archived-action-mask" @click.self="closeArchivedListAction()"><span ref="archivedMenu" class="archived-row-actions" :style="archivedMenuStyle" role="menu"><button role="menuitem" @click="restoreList(archivedListAction)"><ArchiveRestore/>恢复清单</button><button role="menuitem" class="danger-text" @click="openPurgeList(archivedListAction)"><Trash2/>永久删除清单</button></span></span>
     </Teleport>
     <AppSheet :open="Boolean(purgeListTarget)" variant="actions" panel-class="purge-list-dialog" title-id="purge-list-title" description-id="purge-list-description" initial-focus=".secondary" :busy="purgeListSubmitting" @close="closePurgeList">

frontend/src/CalendarIntegration.test.ts

@@ -0,0 +1,11 @@
+import { readFileSync } from 'node:fs'
+import { describe,expect,it } from 'vitest'
+const app=readFileSync('src/App.vue','utf8');const utils=readFileSync('src/lib/mvp-utils.ts','utf8');const css=readFileSync('src/calendar.css','utf8')
+describe('calendar shell integration',()=>{
+ it('puts calendar beside the other first-level tools on desktop and mobile',()=>{const nav=app.slice(app.indexOf('<nav class="primary-nav">'),app.indexOf('</nav>',app.indexOf('<nav class="primary-nav">')));expect(nav.indexOf("switchView('habits')")).toBeLessThan(nav.indexOf("switchView('countdowns')"));expect(nav.indexOf("switchView('countdowns')")).toBeLessThan(nav.indexOf("switchView('memos')"));expect(nav.indexOf("switchView('memos')")).toBeLessThan(nav.indexOf("switchView('calendar')"));const bottom=app.slice(app.indexOf('<nav class="bottom"'),app.indexOf('</nav>',app.indexOf('<nav class="bottom"')));for(const view of ['today','habits','countdowns','memos','calendar'])expect(bottom).toContain(`switchView('${view}')`);expect(bottom).not.toContain("switchView('settings')")})
+ it('persists calendar navigation and mounts the panel',()=>{expect(utils).toContain("'calendar'");expect(app).toContain("import CalendarPanel from './CalendarPanel.vue'");expect(app).toContain("activeView==='calendar'")})
+ it('places desktop event detail in the shell right pane while retaining the mobile sheet',()=>{const panel=readFileSync('src/CalendarPanel.vue','utf8');expect(app).toContain("'detail-open': Boolean(selectedTask) || habitDetailOpen || calendarDetailOpen");expect(app).toContain(':compact-layout="compactLayout" @detail="calendarDetailOpen=$event"');expect(app).toContain("selectedTask || habitDetailOpen || calendarDetailOpen");expect(app).toContain('watch([selectedTask, habitDetailOpen, calendarDetailOpen, sidebarCollapsed], reconcileDesktopPaneWidths)');expect(panel).toContain('defineProps<{ compactLayout: boolean }>()');expect(panel).toContain(':modal="compactLayout"');expect(panel).toContain('inline-target=".shell"');expect(panel).toContain("watch(selected,event=>emit('detail',Boolean(event)))");expect(panel).toContain("watch(()=>props.compactLayout,()=>{selected.value=null},{flush:'sync'})");expect(panel).not.toContain("onBeforeUnmount(()=>emit('detail',false))");expect(css).toContain('@media(min-width:931px){.calendar-view{padding-top:4px}.calendar-event-detail')})
+ it('keeps five 44px mobile targets across required breakpoints',()=>{const shellCss=readFileSync('src/style.css','utf8');expect(shellCss).toContain('grid-template-columns:repeat(5,minmax(0,1fr))');expect(css).toContain('min-height:44px');expect(css).toContain('@media(max-width:720px)');expect(css).toContain('@media(min-width:931px)');expect(css).toContain('@media(min-width:1440px)')})
+ it('uses the shell page title once and contains the horizontal source scroller',()=>{const panel=readFileSync('src/CalendarPanel.vue','utf8');expect(panel).not.toContain('<h1>日历订阅</h1>');expect(css).toContain('.calendar-view{min-width:0;');expect(css).toContain('.calendar-filters{min-width:0;max-width:100%;')})
+ it('uses the approved minimal reading layout for event details',()=>{const panel=readFileSync('src/CalendarPanel.vue','utf8');expect(panel).toContain('class="calendar-event-detail__meta"');expect(panel).toContain('class="calendar-event-detail__content"');expect(panel).not.toContain('<dt>时间</dt>');expect(css).toContain('.calendar-event-detail__meta{');expect(css).toContain('.calendar-event-detail__content{')})
+})

frontend/src/CalendarPanel.test.ts

@@ -0,0 +1,181 @@
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import { createApp, h, nextTick } from 'vue'
+import CalendarPanel from './CalendarPanel.vue'
+
+const cleanups: Array<() => void> = []
+const subscriptions = [{ id:'s1', name:'工作', url:'https://example.com/work.ics', color:'#f15a29', enabled:true, refreshed_at:'2026-09-20T08:00:00Z', last_error:null, stale:false }]
+const events = [{ id:'e1', title:'发布会', starts_at:'2026-09-22T02:00:00Z', ends_at:'2026-09-22T03:00:00Z', all_day:false, description:'产品发布', location:'会议室', source_id:'s1', source_name:'工作', color:'#f15a29' }]
+const json = (value:unknown, status=200) => new Response(JSON.stringify(value), { status, headers:{'content-type':'application/json'} })
+async function flush(){ await Promise.resolve(); await new Promise(r=>vi.isFakeTimers()?vi.advanceTimersByTimeAsync(0).then(()=>r(undefined)):setTimeout(r,0)); await nextTick() }
+async function mount(fetchMock:ReturnType<typeof vi.fn>,compactLayout=true){ vi.stubGlobal('fetch',fetchMock); const shell=document.createElement('div');shell.className='shell';const host=document.createElement('div');shell.append(host);document.body.append(shell);const notices:string[]=[];const errors:unknown[]=[];const app=createApp(()=>h(CalendarPanel,{compactLayout,onNotice:(v:string)=>notices.push(v)}));app.config.errorHandler=error=>errors.push(error);app.mount(host);cleanups.push(()=>{app.unmount();shell.remove()});await flush();return {host,shell,notices,errors} }
+afterEach(()=>{cleanups.splice(0).forEach(fn=>fn());vi.useRealTimers();vi.unstubAllGlobals();vi.restoreAllMocks()})
+
+describe('CalendarPanel',()=>{
+ it('focuses the current week and shows only the selected day events',async()=>{
+  vi.useFakeTimers();vi.setSystemTime(new Date(2026,8,20,10))
+  const weekEvents=[
+   {...events[0],id:'today',title:'今天日程',starts_at:new Date(2026,8,20,9).toISOString(),ends_at:new Date(2026,8,20,10).toISOString()},
+   {...events[0],id:'monday',title:'周一日程',starts_at:new Date(2026,8,14,9).toISOString(),ends_at:new Date(2026,8,14,10).toISOString()},
+  ]
+  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:weekEvents,sources:[]}:subscriptions)))
+  const {host}=await mount(fetchMock)
+  expect(host.querySelectorAll('.calendar-week-day')).toHaveLength(7)
+  expect(host.querySelector('.calendar-week-day[aria-pressed="true"]')?.textContent).toContain('20')
+  expect(host.textContent).toContain('今天日程');expect(host.textContent).not.toContain('周一日程')
+  host.querySelectorAll<HTMLButtonElement>('.calendar-week-day')[0].click();await nextTick()
+  expect(host.textContent).toContain('周一日程');expect(host.textContent).not.toContain('今天日程')
+  vi.useRealTimers()
+ })
+ it('moves one week at a time and can return to today',async()=>{
+  vi.useFakeTimers();vi.setSystemTime(new Date(2026,8,20,10))
+  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:[],sources:[]}:subscriptions)))
+  const {host}=await mount(fetchMock)
+  host.querySelector<HTMLButtonElement>('[aria-label="下一周"]')!.click();await flush()
+  expect(host.querySelector('.calendar-week-day[aria-pressed="true"]')?.textContent).toContain('21')
+  host.querySelector<HTMLButtonElement>('[aria-label="回到今天"]')!.click();await flush()
+  expect(host.querySelector('.calendar-week-day[aria-pressed="true"]')?.textContent).toContain('20')
+  vi.useRealTimers()
+ })
+ it('navigates to the exact next Monday across month and year boundaries',async()=>{
+  vi.useFakeTimers();vi.setSystemTime(new Date(2026,11,31,10))
+  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:[],sources:[]}:subscriptions)))
+  const {host}=await mount(fetchMock)
+  host.querySelector<HTMLButtonElement>('[aria-label="下一周"]')!.click();await flush()
+  expect(host.querySelector('.calendar-week-day[aria-pressed="true"]')?.getAttribute('data-day')).toBe('2027-01-04')
+  expect(host.textContent).toContain('2027年1月')
+  const eventCalls=fetchMock.mock.calls.filter(([url])=>String(url).includes('calendar-events'))
+  const latest=new URL(String(eventCalls.at(-1)?.[0]),'http://localhost').searchParams
+  expect(latest.get('start')).toBe(new Date(2027,0,4).toISOString())
+  expect(latest.get('end')).toBe(new Date(2027,0,11).toISOString())
+  vi.useRealTimers()
+ })
+ it('loads subscriptions and the visible week then filters and opens event detail',async()=>{
+  vi.useFakeTimers();vi.setSystemTime(new Date(2026,8,20,10))
+  const fetchMock=vi.fn((url:string)=>url.includes('calendar-events')?Promise.resolve(json({events,sources:[{id:'s1',name:'工作',stale:false}]})):Promise.resolve(json(subscriptions)))
+  const {host}=await mount(fetchMock)
+  host.querySelector<HTMLButtonElement>('[aria-label="下一周"]')!.click();await flush()
+  host.querySelector<HTMLButtonElement>('[data-day="2026-09-22"]')!.click();await nextTick()
+  const eventsUrl=String(fetchMock.mock.calls.find(([url])=>String(url).includes('calendar-events'))?.[0])
+  const params=new URL(eventsUrl,'http://localhost').searchParams
+  expect(params.get('start')).toMatch(/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$/)
+  expect(params.get('end')).toMatch(/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$/)
+  expect(host.textContent).toContain('发布会');expect(host.textContent).toContain('工作')
+  host.querySelector<HTMLButtonElement>('[data-event-id="e1"]')!.click();await nextTick()
+  expect(document.querySelector('.calendar-event-detail')?.textContent).toContain('产品发布')
+  expect(document.querySelector('.calendar-event-detail__meta')?.textContent).toContain('9月22日周二')
+  expect(document.querySelector('.calendar-event-detail__meta')?.textContent).toContain('工作')
+  expect(document.querySelector('.calendar-event-detail__content')?.textContent).toContain('产品发布')
+  expect(document.querySelector('.calendar-event-detail dl')).toBeNull()
+  host.querySelector<HTMLInputElement>('input[aria-label="筛选工作"]')!.click();await nextTick()
+  expect(host.querySelector('[data-event-id="e1"]')).toBeNull()
+  vi.useRealTimers()
+ })
+ it('opens and closes desktop event detail without teleport patch errors',async()=>{
+  vi.useFakeTimers();vi.setSystemTime(new Date(2026,8,22,10))
+  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events,sources:[]}:subscriptions)))
+  const {host,shell,errors}=await mount(fetchMock,false)
+  host.querySelector<HTMLButtonElement>('[data-event-id="e1"]')!.click();await nextTick()
+  expect(shell.querySelector('.calendar-event-detail')).not.toBeNull()
+  shell.querySelector<HTMLButtonElement>('[aria-label="关闭日程详情"]')!.click();await nextTick()
+  expect(shell.querySelector('.calendar-event-detail')).toBeNull()
+  expect(errors).toEqual([])
+  vi.useRealTimers()
+ })
+ it('filters duplicate source names by source id',async()=>{
+  vi.useFakeTimers();vi.setSystemTime(new Date(2026,8,20,10))
+  const duplicateSubscriptions=[subscriptions[0],{...subscriptions[0],id:'s2',url:'https://example.com/personal.ics',color:'#334455'}]
+  const duplicateEvents=[events[0],{...events[0],id:'e2',title:'私人日程',source_id:'s2',color:'#334455'}]
+  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:duplicateEvents,sources:[]}:duplicateSubscriptions)))
+  const {host}=await mount(fetchMock)
+  host.querySelector<HTMLButtonElement>('[aria-label="下一周"]')!.click();await flush()
+  host.querySelector<HTMLButtonElement>('[data-day="2026-09-22"]')!.click();await nextTick()
+  host.querySelectorAll<HTMLInputElement>('input[aria-label="筛选工作"]')[0].click();await nextTick()
+  expect(host.querySelector('[data-event-id="e1"]')).toBeNull()
+  expect(host.querySelector('[data-event-id="e2"]')).not.toBeNull()
+  vi.useRealTimers()
+ })
+ it('groups UTC events by the browser-local calendar day',async()=>{
+  vi.useFakeTimers();vi.setSystemTime(new Date(2026,8,20,10))
+  const boundary=[{...events[0],id:'boundary',starts_at:'2026-09-21T23:30:00Z',ends_at:'2026-09-22T00:30:00Z'}]
+  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:boundary,sources:[]}:subscriptions)))
+  const {host}=await mount(fetchMock)
+  const boundaryDay=new Date(boundary[0].starts_at)
+  if(!host.querySelector(`[data-day="${boundaryDay.getFullYear()}-${String(boundaryDay.getMonth()+1).padStart(2,'0')}-${String(boundaryDay.getDate()).padStart(2,'0')}"]`)){host.querySelector<HTMLButtonElement>('[aria-label="下一周"]')!.click();await flush()}
+  host.querySelector<HTMLButtonElement>(`[data-day="${boundaryDay.getFullYear()}-${String(boundaryDay.getMonth()+1).padStart(2,'0')}-${String(boundaryDay.getDate()).padStart(2,'0')}"]`)!.click();await nextTick()
+  const expected=new Intl.DateTimeFormat('zh-CN',{month:'long',day:'numeric',weekday:'short'}).format(new Date(boundary[0].starts_at))
+  expect(host.querySelector('.calendar-agenda h2')?.textContent).toContain(expected)
+  vi.useRealTimers()
+ })
+ it('keeps the newest week response when requests finish out of order',async()=>{
+  vi.useFakeTimers();vi.setSystemTime(new Date(2026,8,20,10))
+  const pending:Array<{url:string;resolve:(response:Response)=>void}>=[]
+  const fetchMock=vi.fn((url:string)=>String(url).includes('calendar-events')?new Promise<Response>(resolve=>pending.push({url:String(url),resolve})):Promise.resolve(json(subscriptions)))
+  const {host}=await mount(fetchMock)
+  expect(pending).toHaveLength(1)
+  host.querySelector<HTMLButtonElement>('[aria-label="下一周"]')!.click();await nextTick()
+  expect(pending).toHaveLength(2)
+  pending[1].resolve(json({events:[{...events[0],id:'new',title:'新一周',starts_at:'2026-09-21T02:00:00Z'}],sources:[]}));await flush()
+  pending[0].resolve(json({events:[{...events[0],id:'old',title:'旧一周'}],sources:[]}));await flush()
+  expect(host.textContent).toContain('新一周')
+  expect(host.textContent).not.toContain('旧一周')
+  vi.useRealTimers()
+ })
+ it('supports week navigation and today',async()=>{
+  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:[],sources:[]}:subscriptions)))
+  const {host}=await mount(fetchMock);const before=fetchMock.mock.calls.length
+  host.querySelector<HTMLButtonElement>('[aria-label="下一周"]')!.click();await flush()
+  host.querySelector<HTMLButtonElement>('[aria-label="回到今天"]')!.click();await flush()
+  expect(fetchMock.mock.calls.length).toBeGreaterThanOrEqual(before+2)
+ })
+ it('closes the subscription form without submitting it',async()=>{
+  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:[],sources:[]}:subscriptions)))
+  const {host}=await mount(fetchMock)
+  host.querySelector<HTMLButtonElement>('[aria-label="管理日历源"]')!.click();await nextTick()
+  document.querySelector<HTMLButtonElement>('[aria-label="添加日历订阅"]')!.click();await nextTick()
+  const name=document.querySelector<HTMLInputElement>('input[aria-label="订阅名称"]')!,url=document.querySelector<HTMLInputElement>('input[aria-label="订阅地址"]')!
+  name.value='私人';name.dispatchEvent(new Event('input'));url.value='https://example.com/a.ics';url.dispatchEvent(new Event('input'));await nextTick()
+  document.querySelector<HTMLButtonElement>('[aria-label="关闭订阅表单"]')!.click();await flush()
+  const calls=fetchMock.mock.calls as unknown as Array<[string,RequestInit?]>
+  expect(calls.some(([,options])=>options?.method==='POST')).toBe(false)
+ })
+ it('creates, edits, toggles, refreshes and deletes a source with confirmation',async()=>{
+  const calls:Array<[string,RequestInit|undefined]>=[]
+  const fetchMock=vi.fn((url:string,options?:RequestInit)=>{calls.push([url,options]);if(options?.method==='DELETE')return Promise.resolve(new Response(null,{status:204}));if(options?.method)return Promise.resolve(json(subscriptions[0]));return Promise.resolve(json(url.includes('calendar-events')?{events,sources:[{id:'s1',name:'工作',stale:false}]}:subscriptions))})
+  const {host}=await mount(fetchMock)
+  host.querySelector<HTMLButtonElement>('[aria-label="管理日历源"]')!.click();await nextTick()
+  document.querySelector<HTMLButtonElement>('[aria-label="添加日历订阅"]')!.click();await nextTick()
+  const name=document.querySelector<HTMLInputElement>('input[aria-label="订阅名称"]')!,url=document.querySelector<HTMLInputElement>('input[aria-label="订阅地址"]')!;name.value='私人';name.dispatchEvent(new Event('input'));url.value='https://example.com/a.ics';url.dispatchEvent(new Event('input'));await nextTick();document.querySelector<HTMLButtonElement>('.calendar-subscription-form button[type="submit"]')!.click();await flush()
+  expect(calls.some(([u,o])=>u.endsWith('/calendar-subscriptions')&&o?.method==='POST')).toBe(true)
+  host.querySelector<HTMLButtonElement>('[aria-label="管理日历源"]')!.click();await nextTick()
+  document.querySelector<HTMLButtonElement>('[aria-label="编辑工作"]')!.click();await nextTick()
+  const editedName=document.querySelector<HTMLInputElement>('input[aria-label="订阅名称"]')!;editedName.value='工作日历';editedName.dispatchEvent(new Event('input'));await nextTick();document.querySelector<HTMLButtonElement>('.calendar-subscription-form button[type="submit"]')!.click();await flush()
+  expect(calls.some(([u,o])=>u.endsWith('/calendar-subscriptions/s1')&&o?.method==='PATCH'&&String(o.body).includes('工作日历'))).toBe(true)
+  host.querySelector<HTMLButtonElement>('[aria-label="管理日历源"]')!.click();await nextTick()
+  document.querySelector<HTMLButtonElement>('[aria-label="刷新工作"]')!.click();await flush()
+  expect(calls.some(([u,o])=>u.endsWith('/calendar-subscriptions/s1/refresh')&&o?.method==='POST')).toBe(true)
+  document.querySelector<HTMLInputElement>('[aria-label="启用工作"]')!.click();await flush()
+  expect(calls.some(([u,o])=>u.endsWith('/calendar-subscriptions/s1')&&o?.method==='PATCH')).toBe(true)
+  document.querySelector<HTMLButtonElement>('[aria-label="删除工作"]')!.click();await nextTick()
+  document.querySelector<HTMLButtonElement>('.app-dialog .danger-button')!.click();await flush()
+  expect(calls.some(([u,o])=>u.endsWith('/calendar-subscriptions/s1')&&o?.method==='DELETE')).toBe(true)
+ })
+ it('clears an earlier action error after a successful retry',async()=>{
+  let failRefresh=true
+  const fetchMock=vi.fn((url:string,options?:RequestInit)=>{
+   if(options?.method==='POST'&&String(url).endsWith('/refresh')&&failRefresh){failRefresh=false;return Promise.resolve(json({detail:'上游不可用'},502))}
+   if(options?.method)return Promise.resolve(json(subscriptions[0]))
+   return Promise.resolve(json(String(url).includes('calendar-events')?{events:[],sources:[]}:subscriptions))
+  })
+  const {host}=await mount(fetchMock);host.querySelector<HTMLButtonElement>('[aria-label="管理日历源"]')!.click();await nextTick()
+  document.querySelector<HTMLButtonElement>('[aria-label="刷新工作"]')!.click();await flush()
+  expect(host.querySelector('.inline-error')?.textContent).toContain('上游不可用')
+  document.querySelector<HTMLButtonElement>('[aria-label="刷新工作"]')!.click();await flush()
+  expect(host.querySelector('.inline-error')).toBeNull()
+ })
+ it('shows source-specific refresh errors',async()=>{
+  const failed=[{...subscriptions[0],last_error:'订阅地址无法访问'}]
+  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:[],sources:[]}:failed)))
+  const {host}=await mount(fetchMock);host.querySelector<HTMLButtonElement>('[aria-label="管理日历源"]')!.click();await nextTick()
+  expect(document.querySelector('[role="alert"]')?.textContent).toContain('订阅地址无法访问')
+ })
+})

frontend/src/CalendarPanel.vue

@@ -0,0 +1,77 @@
+<script setup lang="ts">
+import { computed, onMounted, ref, watch } from 'vue'
+import { CalendarDays, ChevronLeft, ChevronRight, Pencil, Plus, RefreshCw, Settings2, Trash2, X } from 'lucide-vue-next'
+import { csrfHeader } from './lib/csrf'
+import { formatApiErrorDetail } from './lib/mvp-utils'
+import AppSheet from './components/AppSheet.vue'
+import AppDialog, { type AppDialogOptions } from './components/AppDialog.vue'
+
+type Subscription = { id:string; name:string; url:string; color:string; enabled:boolean; refreshed_at:string|null; last_error:string|null; stale:boolean }
+type CalendarEvent = { id:string; title:string; starts_at:string; ends_at:string; all_day:boolean; source_id:string; source_name:string; color:string; description?:string|null; location?:string|null }
+type EventResponse = { events:CalendarEvent[]; sources:Array<{id:string;name:string;stale:boolean}> }
+type Form = { name:string; url:string; color:string; enabled:boolean }
+const props=defineProps<{ compactLayout: boolean }>()
+const emit=defineEmits<{notice:[message:string];detail:[open:boolean]}>()
+const subscriptions=ref<Subscription[]>([]),events=ref<CalendarEvent[]>([]),loading=ref(false),error=ref('')
+let eventsRequestGeneration=0
+const selectedDay=ref(new Date(new Date().getFullYear(),new Date().getMonth(),new Date().getDate())),hiddenSources=ref(new Set<string>())
+const selected=ref<CalendarEvent|null>(null),manageOpen=ref(false),formOpen=ref(false),editing=ref<Subscription|null>(null),busyId=ref('')
+const form=ref<Form>({name:'',url:'',color:'#f15a29',enabled:true})
+const appDialog=ref<{show:(options:AppDialogOptions)=>Promise<boolean|string|null>}|null>(null)
+const request=async(path:string,options:RequestInit={})=>{const headers:Record<string,string>={...(options.headers as Record<string,string>||{})};if(options.body)headers['Content-Type']='application/json';Object.assign(headers,csrfHeader(options.method));const response=await fetch('/api/v1'+path,{credentials:'include',...options,headers});if(!response.ok){const body=await response.json().catch(()=>({}));throw new Error(formatApiErrorDetail((body as {detail?:unknown}).detail??body))}return response.status===204?null:response.json()}
+const key=(date:Date)=>`${date.getFullYear()}-${String(date.getMonth()+1).padStart(2,'0')}-${String(date.getDate()).padStart(2,'0')}`
+const startOfWeek=(value:Date)=>{const date=new Date(value.getFullYear(),value.getMonth(),value.getDate());date.setDate(date.getDate()-((date.getDay()+6)%7));return date}
+const weekStart=computed(()=>startOfWeek(selectedDay.value))
+const weekDays=computed(()=>Array.from({length:7},(_,index)=>{const date=new Date(weekStart.value);date.setDate(date.getDate()+index);return date}))
+const range=computed(()=>{const start=weekStart.value;const end=new Date(start);end.setDate(end.getDate()+7);return{start:start.toISOString(),end:end.toISOString()}})
+const weekLabel=computed(()=>{const start=weekDays.value[0],end=weekDays.value[6];if(start.getFullYear()!==end.getFullYear())return `${start.getFullYear()}年${start.getMonth()+1}月${start.getDate()}日 - ${end.getFullYear()}年${end.getMonth()+1}月${end.getDate()}日`;return start.getMonth()===end.getMonth()?`${start.getFullYear()}年${start.getMonth()+1}月`:`${start.getFullYear()}年${start.getMonth()+1}月${start.getDate()}日 - ${end.getMonth()+1}月${end.getDate()}日`})
+const eventStart=(event:CalendarEvent)=>event.starts_at
+const eventEnd=(event:CalendarEvent)=>event.ends_at
+const eventKey=(event:CalendarEvent)=>event.id
+const filteredEvents=computed(()=>events.value.filter(event=>!hiddenSources.value.has(event.source_id)).sort((a,b)=>eventStart(a).localeCompare(eventStart(b))))
+const localDayKey=(value:string)=>{const date=new Date(value);return Number.isNaN(date.getTime())?value.slice(0,10):key(date)}
+const selectedDayKey=computed(()=>key(selectedDay.value))
+const visibleEvents=computed(()=>filteredEvents.value.filter(event=>localDayKey(eventStart(event))===selectedDayKey.value))
+const selectedDayLabel=computed(()=>displayDay(selectedDayKey.value))
+const dayEventCount=(date:Date)=>filteredEvents.value.filter(event=>localDayKey(eventStart(event))===key(date)).length
+const isToday=(date:Date)=>key(date)===key(new Date())
+const weekDayLabel=(date:Date)=>new Intl.DateTimeFormat('zh-CN',{weekday:'short'}).format(date).replace('周','')
+const eventTitle=(event:CalendarEvent)=>event.title||'未命名事件'
+const eventSource=(event:CalendarEvent)=>event.source_name||'日历'
+const eventColor=(event:CalendarEvent)=>event.color||'#f15a29'
+function displayDay(day:string){const [y,m,d]=day.split('-').map(Number);return new Intl.DateTimeFormat('zh-CN',{month:'long',day:'numeric',weekday:'short'}).format(new Date(y,m-1,d))}
+function displayTime(event:CalendarEvent){if(event.all_day)return'全天';const date=new Date(eventStart(event));return Number.isNaN(date.getTime())?'时间待定':new Intl.DateTimeFormat('zh-CN',{hour:'2-digit',minute:'2-digit'}).format(date)}
+async function loadSubscriptions(){subscriptions.value=await request('/calendar-subscriptions') as Subscription[]}
+async function loadEvents(){const generation=++eventsRequestGeneration;const requestedRange=range.value;const data=await request(`/calendar-events?start=${encodeURIComponent(requestedRange.start)}&end=${encodeURIComponent(requestedRange.end)}`) as EventResponse;if(generation===eventsRequestGeneration)events.value=data.events}
+async function load(){loading.value=true;error.value='';try{await Promise.all([loadSubscriptions(),loadEvents()])}catch(reason){error.value=reason instanceof Error?reason.message:'日历载入失败'}finally{loading.value=false}}
+async function moveWeek(offset:number){const next=new Date(weekStart.value);next.setDate(next.getDate()+offset*7);selectedDay.value=next;await loadEvents().catch(reason=>error.value=reason instanceof Error?reason.message:'事件载入失败')}
+async function today(){const now=new Date();selectedDay.value=new Date(now.getFullYear(),now.getMonth(),now.getDate());await loadEvents().catch(reason=>error.value=reason instanceof Error?reason.message:'事件载入失败')}
+function selectDay(date:Date){selectedDay.value=new Date(date.getFullYear(),date.getMonth(),date.getDate())}
+function toggleFilter(id:string){const next=new Set(hiddenSources.value);next.has(id)?next.delete(id):next.add(id);hiddenSources.value=next}
+function openCreate(){editing.value=null;form.value={name:'',url:'',color:'#f15a29',enabled:true};formOpen.value=true}
+function openEdit(item:Subscription){editing.value=item;form.value={name:item.name,url:item.url,color:item.color||'#f15a29',enabled:item.enabled};formOpen.value=true}
+async function save(){if(busyId.value||!form.value.name.trim()||!form.value.url.trim())return;busyId.value='form';error.value='';try{await request(editing.value?`/calendar-subscriptions/${editing.value.id}`:'/calendar-subscriptions',{method:editing.value?'PATCH':'POST',body:JSON.stringify({...form.value,name:form.value.name.trim(),url:form.value.url.trim()})});formOpen.value=false;await Promise.all([loadSubscriptions(),loadEvents()]);emit('notice',editing.value?'日历订阅已更新':'日历订阅已添加')}catch(reason){error.value=reason instanceof Error?reason.message:'保存失败'}finally{busyId.value=''}}
+async function toggleEnabled(item:Subscription){if(busyId.value)return;busyId.value=item.id;error.value='';try{await request(`/calendar-subscriptions/${item.id}`,{method:'PATCH',body:JSON.stringify({enabled:!item.enabled})});await Promise.all([loadSubscriptions(),loadEvents()]);emit('notice',item.enabled?'日历订阅已停用':'日历订阅已启用')}catch(reason){error.value=reason instanceof Error?reason.message:'更新失败'}finally{busyId.value=''}}
+async function refresh(item:Subscription){if(busyId.value)return;busyId.value=item.id;error.value='';try{await request(`/calendar-subscriptions/${item.id}/refresh`,{method:'POST'});await Promise.all([loadSubscriptions(),loadEvents()]);emit('notice',`${item.name}已刷新`)}catch(reason){error.value=reason instanceof Error?reason.message:'刷新失败'}finally{busyId.value=''}}
+async function remove(item:Subscription){if(busyId.value)return;if(await appDialog.value?.show({title:`删除“${item.name}”？`,description:'该来源的事件也会从日历中移除。',danger:true,confirmText:'删除'})!==true)return;busyId.value=item.id;error.value='';try{await request(`/calendar-subscriptions/${item.id}`,{method:'DELETE'});hiddenSources.value.delete(item.id);await Promise.all([loadSubscriptions(),loadEvents()]);emit('notice','日历订阅已删除')}catch(reason){error.value=reason instanceof Error?reason.message:'删除失败'}finally{busyId.value=''}}
+watch(manageOpen,open=>{if(!open)formOpen.value=false})
+watch(selected,event=>emit('detail',Boolean(event)))
+watch(()=>props.compactLayout,()=>{selected.value=null},{flush:'sync'})
+onMounted(()=>void load())
+</script>
+
+<template>
+<section class="calendar-view" :class="{loading}">
+ <header class="calendar-heading"><p>{{filteredEvents.length}} 个日程 · {{subscriptions.length}} 个来源</p><button class="soft-button calendar-manage" aria-label="管理日历源" @click="manageOpen=true"><Settings2/>日历源</button></header>
+ <p v-if="error" class="inline-error" role="alert">{{error}}</p>
+ <div class="calendar-toolbar"><button aria-label="上一周" @click="moveWeek(-1)"><ChevronLeft/></button><button class="calendar-today" aria-label="回到今天" @click="today">今天</button><strong>{{weekLabel}}</strong><button aria-label="下一周" @click="moveWeek(1)"><ChevronRight/></button></div>
+ <div class="calendar-week-strip" role="group" aria-label="选择日期"><button v-for="day in weekDays" :key="key(day)" class="calendar-week-day" :class="{'is-selected':key(day)===selectedDayKey,'is-today':isToday(day)}" :data-day="key(day)" :aria-label="`${displayDay(key(day))}${dayEventCount(day)?`，${dayEventCount(day)}个日程`:'，无日程'}`" :aria-pressed="key(day)===selectedDayKey" @click="selectDay(day)"><small>{{weekDayLabel(day)}}</small><b>{{day.getDate()}}</b><i v-if="dayEventCount(day)" aria-hidden="true">{{dayEventCount(day)}}</i></button></div>
+ <div v-if="subscriptions.length" class="calendar-filters" aria-label="筛选日历源"><label v-for="source in subscriptions" :key="source.id"><input type="checkbox" :aria-label="`筛选${source.name}`" :checked="!hiddenSources.has(source.id)" @change="toggleFilter(source.id)"><i :style="{background:source.color}"/>{{source.name}}</label></div>
+ <div v-if="visibleEvents.length" class="calendar-agenda"><section><h2>{{selectedDayLabel}} · {{visibleEvents.length}} 个日程</h2><button v-for="event in visibleEvents" :key="eventKey(event)" :data-event-id="event.id" class="calendar-event-row" @click="selected=event"><i :style="{background:eventColor(event)}"/><time>{{displayTime(event)}}</time><span><b>{{eventTitle(event)}}</b><small>{{eventSource(event)}}<template v-if="event.location"> · {{event.location}}</template></small></span><ChevronRight/></button></section></div>
+ <div v-else-if="!loading" class="calendar-empty"><CalendarDays/><b>这一天还没有日程</b><span>{{subscriptions.length?'可以选择本周其他日期或检查来源筛选':'先添加一个 iCal 日历订阅'}}</span><button v-if="!subscriptions.length" class="primary-small" @click="manageOpen=true;openCreate()">添加日历源</button></div>
+ <AppSheet :open="Boolean(selected)" :modal="compactLayout" inline-target=".shell" variant="detail" panel-class="calendar-event-detail" title-id="calendar-event-title" initial-focus="button[aria-label='关闭日程详情']" :close-on-scrim="compactLayout" @close="selected=null"><template v-if="selected"><header class="app-sheet__header"><h3 id="calendar-event-title">{{eventTitle(selected)}}</h3><button aria-label="关闭日程详情" @click="selected=null"><X/></button></header><div class="app-sheet__body"><div class="calendar-event-detail__meta"><span>{{displayDay(localDayKey(eventStart(selected)))}}</span><span>{{displayTime(selected)}}<template v-if="eventEnd(selected) && !selected.all_day"> - {{displayTime({...selected,starts_at:eventEnd(selected)})}}</template></span><span><i :style="{background:eventColor(selected)}"/>{{eventSource(selected)}}</span><span v-if="selected.location">{{selected.location}}</span></div><section v-if="selected.description" class="calendar-event-detail__content"><p>{{selected.description}}</p></section><p v-else class="calendar-event-detail__empty">没有备注</p></div></template></AppSheet>
+ <AppSheet :open="manageOpen" variant="detail" panel-class="calendar-sources-sheet" title-id="calendar-sources-title" initial-focus="button[aria-label='关闭日历源']" @close="manageOpen=false"><header class="app-sheet__header"><h3 id="calendar-sources-title">日历源</h3><button aria-label="关闭日历源" @click="manageOpen=false"><X/></button></header><div class="app-sheet__body"><button class="primary-small calendar-source-add" aria-label="添加日历订阅" @click="openCreate"><Plus/>添加订阅</button><div class="calendar-source-list"><article v-for="source in subscriptions" :key="source.id"><div class="calendar-source-copy"><b><i :style="{background:source.color}"/>{{source.name}}</b><small>{{source.url}}</small><small v-if="source.last_error" class="calendar-source-error" role="alert">{{source.last_error}}</small></div><label class="calendar-source-toggle"><input type="checkbox" :aria-label="`启用${source.name}`" :checked="source.enabled" :disabled="Boolean(busyId)" @change="toggleEnabled(source)"><span>启用</span></label><button :aria-label="`刷新${source.name}`" :disabled="Boolean(busyId)" @click="refresh(source)"><RefreshCw/></button><button :aria-label="`编辑${source.name}`" :disabled="Boolean(busyId)" @click="openEdit(source)"><Pencil/></button><button class="danger-text" :aria-label="`删除${source.name}`" :disabled="Boolean(busyId)" @click="remove(source)"><Trash2/></button></article></div></div></AppSheet>
+ <AppSheet :open="formOpen" variant="create" panel-class="calendar-subscription-form" title-id="calendar-form-title" initial-focus="input[aria-label='订阅名称']" :busy="busyId==='form'" @close="formOpen=false" @submit.prevent="save"><header class="app-sheet__header"><h3 id="calendar-form-title">{{editing?'编辑订阅':'添加订阅'}}</h3><button type="button" aria-label="关闭订阅表单" @click="formOpen=false"><X/></button></header><div class="app-sheet__body"><label>名称<input v-model="form.name" aria-label="订阅名称" maxlength="120" required placeholder="例如：工作"></label><label>iCal 地址<input v-model="form.url" aria-label="订阅地址" type="url" required placeholder="https://example.com/calendar.ics"></label><label>颜色<input v-model="form.color" aria-label="订阅颜色" type="color"></label><label class="calendar-form-toggle"><input v-model="form.enabled" type="checkbox">启用此订阅</label></div><footer class="app-sheet__footer"><button type="button" class="secondary" @click="formOpen=false">取消</button><button type="submit" class="primary-small" :disabled="Boolean(busyId)||!form.name.trim()||!form.url.trim()">保存</button></footer></AppSheet>
+ <AppDialog ref="appDialog"/>
+</section>
+</template>

frontend/src/MemoIntegration.test.ts

@@ -7,13 +7,13 @@ const panel = readFileSync('src/MemoPanel.vue', 'utf8')
 const editor = readFileSync('src/components/MemoEditor.vue', 'utf8')
 
 describe('memo shell integration', () => {
-  it('places Memos immediately after Countdowns in desktop navigation and keeps mobile tabs unchanged', () => {
+  it('places Memos immediately after Countdowns in desktop navigation and exposes it as a direct mobile destination', () => {
     const nav = app.slice(app.indexOf('<nav class="primary-nav">'), app.indexOf('</nav>', app.indexOf('<nav class="primary-nav">')))
     expect(nav.indexOf("switchView('memos')")).toBeGreaterThan(nav.indexOf("switchView('countdowns')"))
     expect(nav.match(/switchView\('memos'\)/g)).toHaveLength(1)
     const bottom = app.slice(app.indexOf('<nav class="bottom"'), app.indexOf('</nav>', app.indexOf('<nav class="bottom"')))
-    expect(bottom).not.toContain("switchView('memos')")
-    expect(bottom.match(/aria-current=/g)).toHaveLength(4)
+    expect(bottom).toContain("switchView('memos')")
+    expect(bottom.match(/aria-current=/g)).toHaveLength(5)
   })
 
   it('routes the shared cat FAB to a local memo draft, hides it in trash, and defers POST until save', () => {

frontend/src/TodayEnvironment.test.ts

@@ -90,7 +90,7 @@ describe('Today environment integration', () => {
     expect(filter).toBeGreaterThan(remaining)
     expect(overdue).toBeGreaterThan(filter)
     expect(main.match(/>今天<\/h1>/g)).toHaveLength(1)
-    expect(main).toContain("<div v-if=\"!['today','tasks','upcoming','habits','settings'].includes(activeView)\" class=\"topbar-title\"><h1")
+    expect(main).toContain("<div v-if=\"!['today','tasks','upcoming','trash','habits','settings'].includes(activeView)\" class=\"topbar-title\"><h1")
     expect(main).not.toContain('class="topbar-actions"')
     expect(main).not.toContain('class="topbar-filter"')
     expect(main).not.toContain('aria-label="刷新当前页面"')

frontend/src/lib/mvp-utils.test.ts

@@ -67,6 +67,8 @@ describe('MVP view utilities', () => {
     expect(readStoredNavigation(fakeStorage, 'dodo.navigation')).toEqual({ view: 'tasks', listId: 'list-2' })
     writeStoredNavigation(fakeStorage, 'dodo.navigation', 'memos', 'list-2')
     expect(readStoredNavigation(fakeStorage, 'dodo.navigation')).toEqual({ view: 'memos', listId: 'list-2' })
+    writeStoredNavigation(fakeStorage, 'dodo.navigation', 'calendar', 'list-2')
+    expect(readStoredNavigation(fakeStorage, 'dodo.navigation')).toEqual({ view: 'calendar', listId: 'list-2' })
     storage.set('dodo.navigation', JSON.stringify({ view: 'invalid', listId: 'list-2' }))
     expect(readStoredNavigation(fakeStorage, 'dodo.navigation')).toEqual({ view: 'today', listId: '' })
   })

frontend/src/lib/mvp-utils.ts

@@ -1,7 +1,7 @@
 type BooleanStorage = Pick<Storage, 'getItem' | 'setItem'>
-type NavigationView = 'tasks' | 'today' | 'upcoming' | 'trash' | 'habits' | 'countdowns' | 'memos' | 'settings'
+type NavigationView = 'tasks' | 'today' | 'upcoming' | 'trash' | 'habits' | 'countdowns' | 'memos' | 'calendar' | 'settings'
 type StoredNavigation = { view: NavigationView; listId: string }
-const NAVIGATION_VIEWS = new Set<NavigationView>(['tasks', 'today', 'upcoming', 'trash', 'habits', 'countdowns', 'memos', 'settings'])
+const NAVIGATION_VIEWS = new Set<NavigationView>(['tasks', 'today', 'upcoming', 'trash', 'habits', 'countdowns', 'memos', 'calendar', 'settings'])
 
 export function readStoredNavigation(storage: BooleanStorage, key: string): StoredNavigation {
   try {

frontend/src/lib/task-utils.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest'
-import { applyMarkdownFormat, buildTaskDueDraft, buildTaskRecurrencePayload, buildTaskRrule, classifyTaskForToday, defaultTaskDueAt, groupTaskTree, isSameTaskSortTier, mergeReorderedSubset, moveItemWithinScope, parseTaskDueDraft, parseTaskRecurrence, parseTaskRrule, renderMarkdown, toDateTimeLocal } from './task-utils'
+import { applyMarkdownFormat, buildTaskDueDraft, buildTaskRecurrencePayload, buildTaskRrule, classifyTaskForToday, defaultTaskDueAt, groupTaskTree, groupTrashTaskTree, isSameTaskSortTier, mergeReorderedSubset, moveItemWithinScope, parseTaskDueDraft, parseTaskRecurrence, parseTaskRrule, renderMarkdown, toDateTimeLocal } from './task-utils'
 
 type TaskFixture = {
   id: string
@@ -7,6 +7,7 @@ type TaskFixture = {
   description?: string
   parent_id?: string | null
   completed?: boolean
+  due_at?: string | null
   list_name?: string
   subtasks?: TaskFixture[]
 }
@@ -28,6 +29,30 @@ describe('task utilities', () => {
     expect(groupTaskTree([parent])).toEqual([{ task: parent, subtasks: [child] }])
   })
 
+  it('groups trash parents by overdue, upcoming, and no deadline while keeping parent-child units intact', () => {
+    const now = new Date('2026-09-21T08:00:00+08:00')
+    const child: TaskFixture = { id: 'child', title: 'Child', parent_id: 'overdue' }
+    const rows: TaskFixture[] = [
+      { id: 'none', title: 'No deadline', parent_id: null },
+      { id: 'future', title: 'Future', parent_id: null, due_at: '2026-10-20T15:59:00.000Z' },
+      { id: 'overdue', title: 'Overdue', parent_id: null, due_at: '2026-09-07T01:11:00.000Z' },
+      child,
+    ]
+
+    expect(groupTrashTaskTree(rows, now)).toEqual([
+      { key: 'overdue', label: '已过期', nodes: [{ task: rows[2], subtasks: [child] }] },
+      { key: 'upcoming', label: '未来截止', nodes: [{ task: rows[1], subtasks: [] }] },
+      { key: 'undated', label: '无截止日期', nodes: [{ task: rows[0], subtasks: [] }] },
+    ])
+  })
+
+  it('treats invalid trash deadlines as undated instead of overdue', () => {
+    const task: TaskFixture = { id: 'invalid', title: 'Invalid', parent_id: null, due_at: 'not-a-date' }
+    expect(groupTrashTaskTree([task], new Date('2026-09-21T08:00:00+08:00'))).toEqual([
+      { key: 'undated', label: '无截止日期', nodes: [{ task, subtasks: [] }] },
+    ])
+  })
+
   it('classifies due edits for Today membership', () => {
     const start = new Date('2026-09-10T00:00:00+08:00')
     const end = new Date('2026-09-11T00:00:00+08:00')
@@ -75,12 +100,14 @@ describe('task utilities', () => {
     expect(() => buildTaskRrule({ frequency: 'daily', interval: 0, weekdays: [], monthDays: [], endMode: 'never', count: 10, until: '' })).toThrow('重复间隔至少为 1')
   })
 
-  it('builds a distinct completion-trigger payload and parses it without RRULE', () => {
-    expect(buildTaskRecurrencePayload('after_completion', { afterCompletionDays: '7' })).toEqual({ trigger_mode: 'after_completion', after_completion_days: 7 })
-    expect(parseTaskRecurrence({ rrule: null, trigger_mode: 'after_completion', after_completion_days: 14 })).toEqual({ option: 'after_completion', afterCompletionDays: 14 })
-    expect(() => buildTaskRecurrencePayload('after_completion', { afterCompletionDays: '1.5' })).toThrow('请输入 1 到 3650 的整数天数')
-    expect(() => buildTaskRecurrencePayload('after_completion', { afterCompletionDays: '0' })).toThrow('请输入 1 到 3650 的整数天数')
-    expect(() => buildTaskRecurrencePayload('after_completion', { afterCompletionDays: '3651' })).toThrow('请输入 1 到 3650 的整数天数')
+  it('builds and parses completion-trigger intervals in days or months', () => {
+    expect(buildTaskRecurrencePayload('after_completion', { afterCompletionDays: '7' })).toEqual({ trigger_mode: 'after_completion', after_completion_days: 7, after_completion_unit: 'days' })
+    expect(buildTaskRecurrencePayload('after_completion', { afterCompletionDays: '2', afterCompletionUnit: 'months' })).toEqual({ trigger_mode: 'after_completion', after_completion_days: 2, after_completion_unit: 'months' })
+    expect(parseTaskRecurrence({ rrule: null, trigger_mode: 'after_completion', after_completion_days: 14 })).toEqual({ option: 'after_completion', afterCompletionDays: 14, afterCompletionUnit: 'days' })
+    expect(parseTaskRecurrence({ rrule: null, trigger_mode: 'after_completion', after_completion_days: 3, after_completion_unit: 'months' })).toEqual({ option: 'after_completion', afterCompletionDays: 3, afterCompletionUnit: 'months' })
+    expect(() => buildTaskRecurrencePayload('after_completion', { afterCompletionDays: '1.5' })).toThrow('请输入 1 到 3650 的整数')
+    expect(() => buildTaskRecurrencePayload('after_completion', { afterCompletionDays: '0' })).toThrow('请输入 1 到 3650 的整数')
+    expect(() => buildTaskRecurrencePayload('after_completion', { afterCompletionDays: '3651' })).toThrow('请输入 1 到 3650 的整数')
   })
 
   it('builds scheduled recurrence payloads separately from completion triggers', () => {

frontend/src/lib/task-utils.ts

@@ -85,6 +85,27 @@ export function groupTaskTree<T extends MinimalTask>(tasks: T[]) {
   }))
 }
 
+export type TrashTaskGroup<T extends MinimalTask> = {
+  key: 'overdue' | 'upcoming' | 'undated'
+  label: '已过期' | '未来截止' | '无截止日期'
+  nodes: Array<{ task: T; subtasks: T[] }>
+}
+
+export function groupTrashTaskTree<T extends MinimalTask>(tasks: T[], now = new Date()): TrashTaskGroup<T>[] {
+  const nodes = groupTaskTree(tasks)
+  const groups: TrashTaskGroup<T>[] = [
+    { key: 'overdue', label: '已过期', nodes: [] },
+    { key: 'upcoming', label: '未来截止', nodes: [] },
+    { key: 'undated', label: '无截止日期', nodes: [] },
+  ]
+  for (const node of nodes) {
+    const due = node.task.due_at ? Date.parse(node.task.due_at) : Number.NaN
+    const key = Number.isFinite(due) ? (due < now.valueOf() ? 'overdue' : 'upcoming') : 'undated'
+    groups.find((group) => group.key === key)!.nodes.push(node)
+  }
+  return groups.filter((group) => group.nodes.length)
+}
+
 export function classifyTaskForToday(
   task: Pick<MinimalTask, 'completed' | 'due_at'>,
   start: Date,
@@ -172,15 +193,16 @@ export function parseTaskRrule(rrule = ''): TaskRepeatConfig {
 }
 
 export type TaskRepeatOption = 'none' | 'daily' | 'weekly' | 'monthly' | 'yearly' | 'after_completion' | 'custom'
-export type TaskRecurrenceRecord = { rrule?: string | null; trigger_mode?: 'scheduled' | 'after_completion'; after_completion_days?: number | null }
+export type AfterCompletionUnit = 'days' | 'months'
+export type TaskRecurrenceRecord = { rrule?: string | null; trigger_mode?: 'scheduled' | 'after_completion'; after_completion_days?: number | null; after_completion_unit?: AfterCompletionUnit | null }
 
-export function buildTaskRecurrencePayload(option: TaskRepeatOption, values: { afterCompletionDays: string | number; repeatConfig?: TaskRepeatConfig }) {
+export function buildTaskRecurrencePayload(option: TaskRepeatOption, values: { afterCompletionDays: string | number; afterCompletionUnit?: AfterCompletionUnit; repeatConfig?: TaskRepeatConfig }) {
   if (option === 'none') return {}
   if (option === 'after_completion') {
     const raw = String(values.afterCompletionDays).trim()
     const days = Number(raw)
-    if (!/^\d+$/.test(raw) || !Number.isInteger(days) || days < 1 || days > 3650) throw new Error('请输入 1 到 3650 的整数天数')
-    return { trigger_mode: 'after_completion' as const, after_completion_days: days }
+    if (!/^\d+$/.test(raw) || !Number.isInteger(days) || days < 1 || days > 3650) throw new Error('请输入 1 到 3650 的整数')
+    return { trigger_mode: 'after_completion' as const, after_completion_days: days, after_completion_unit: values.afterCompletionUnit ?? 'days' }
   }
   const rrule = option === 'custom'
     ? buildTaskRrule(values.repeatConfig ?? { frequency: 'daily', interval: 1, endMode: 'never' })
@@ -189,13 +211,13 @@ export function buildTaskRecurrencePayload(option: TaskRepeatOption, values: { a
 }
 
 export function parseTaskRecurrence(recurrence?: TaskRecurrenceRecord | null) {
-  if (!recurrence) return { option: 'none' as TaskRepeatOption, afterCompletionDays: 1 }
+  if (!recurrence) return { option: 'none' as TaskRepeatOption, afterCompletionDays: 1, afterCompletionUnit: 'days' as AfterCompletionUnit }
   if (recurrence.trigger_mode === 'after_completion') {
-    return { option: 'after_completion' as TaskRepeatOption, afterCompletionDays: recurrence.after_completion_days ?? 1 }
+    return { option: 'after_completion' as TaskRepeatOption, afterCompletionDays: recurrence.after_completion_days ?? 1, afterCompletionUnit: recurrence.after_completion_unit ?? 'days' as AfterCompletionUnit }
   }
   const parsed = parseTaskRrule(recurrence.rrule ?? '')
   const simple = parsed.interval === 1 && !parsed.weekdays?.length && !parsed.monthDays?.length && parsed.endMode === 'never'
-  return { option: (simple ? parsed.frequency : 'custom') as TaskRepeatOption, afterCompletionDays: 1 }
+  return { option: (simple ? parsed.frequency : 'custom') as TaskRepeatOption, afterCompletionDays: 1, afterCompletionUnit: 'days' as AfterCompletionUnit }
 }
 
 export function defaultTaskDueAt(now = new Date()) {

frontend/src/main.ts

@@ -2,6 +2,7 @@ import { createApp } from 'vue'
 import App from './App.vue'
 import './style.css'
 import './memo.css'
+import './calendar.css'
 
 createApp(App).mount('#app')
 if ('serviceWorker' in navigator && import.meta.env.PROD) {

frontend/src/style.test.ts

@@ -14,7 +14,7 @@ const appSheet = readFileSync('src/components/AppSheet.vue', 'utf8')
 describe('unified task due display', () => {
   it('uses the shared display for overdue and ordinary parent task rows', () => {
     expect(app).toContain("import TaskDueDisplay from './components/TaskDueDisplay.vue'")
-    expect(app.match(/<TaskDueDisplay/g)).toHaveLength(2)
+    expect(app.match(/<TaskDueDisplay/g)).toHaveLength(3)
     expect(app).toContain(':due-at="node.task.due_at"')
     expect(app).not.toContain(':due-at="subtask.due_at"')
     expect(app).not.toContain('formatDue(')
@@ -31,10 +31,10 @@ describe('unified task due display', () => {
   })
 
   it('places every visible-list due display in a right tail before stable actions', () => {
-    expect(app.match(/<span v-if="[^\"]+\.due_at" class="task-tail"><TaskDueDisplay/g)).toHaveLength(2)
+    expect(app.match(/<span v-if="[^\"]+\.due_at" class="task-tail"><TaskDueDisplay/g)).toHaveLength(3)
     expect(app).not.toContain('class="meta"><TaskDueDisplay')
     expect(app).toContain('</div><span v-if="node.task.due_at" class="task-tail"><TaskDueDisplay')
-    expect(app).toContain('</span><span v-if="activeView===\'trash\'" class="task-actions">')
+    expect(app).toContain('<span class="task-actions"><button class="icon ghost trash-more"')
     expect(app).not.toContain('restoreTask(subtask)')
     expect(app).not.toContain('purgeTask(subtask)')
     expect(app).not.toContain('task-detail-trigger')
@@ -118,16 +118,16 @@ describe('approved cream solid button system', () => {
 })
 
 describe('mobile navigation styles', () => {
-  it('renames the bottom More tab to a direct Settings tab', () => {
+  it('uses five direct mobile destinations and keeps Settings in the sidebar', () => {
     expect(app).not.toContain('aria-controls="mobile-more-menu"')
     expect(app).not.toContain('<Ellipsis/><span>更多</span>')
-    expect(app).toContain("<Settings/><span>设置</span>")
-    expect(app).toContain("@click=\"switchView('settings')\"")
-    expect(app).toContain('<span>设置</span>')
+    expect(app).toContain("<StickyNote/><span>备忘录</span>")
+    expect(app).toContain("<CalendarDays/><span>日历订阅</span>")
+    expect(app).not.toContain("@click=\"switchView('settings')\"><Settings/><span>设置</span>")
   })
 
   it('marks only exact mobile destinations active and exposes aria-current only there', () => {
-    for (const view of ['today', 'habits', 'countdowns', 'settings']) {
+    for (const view of ['today', 'habits', 'countdowns', 'memos', 'calendar']) {
       expect(app).toContain(`:class="{active:activeView==='${view}'}" :aria-current="activeView==='${view}' ? 'page' : undefined"`)
     }
     expect(app).not.toContain("activeView==='tasks'||activeView==='upcoming'||activeView==='trash'||activeView==='settings'")
@@ -160,7 +160,7 @@ describe('approved Settings 01 paper ledger', () => {
   it('moves Settings identity into the body and suppresses the duplicate shell title', () => {
     expect(app).not.toContain("'settings-main':activeView==='settings'")
     expect(app).toContain(":class=\"{'settings-topbar':activeView==='settings'}\"")
-    expect(app).toContain("v-if=\"!['today','tasks','upcoming','habits','settings'].includes(activeView)\" class=\"topbar-title\"")
+    expect(app).toContain("v-if=\"!['today','tasks','upcoming','trash','habits','settings'].includes(activeView)\" class=\"topbar-title\"")
     expect(app).not.toContain('v-if="activeView===\'settings\'" class="icon topbar-refresh settings-refresh"')
     expect(app).not.toContain('aria-label="刷新当前页面"')
     expect(mvpPanel).toContain('<header class="settings-heading"><h1>设置</h1><p>管理数据、账户与登录设备</p></header>')
@@ -317,22 +317,23 @@ describe('solid cream material system', () => {
 
 describe('approved UI detail direction', () => {
   it('opens ordinary and overdue task details from the task body while preserving Trash actions', () => {
-    const ordinaryStart = app.indexOf('<section :id="activeView===\'today\' ? \'today-tasks\' : undefined"')
+    const ordinaryStart = app.indexOf('<section v-else :id="activeView===\'today\' ? \'today-tasks\' : undefined"')
     const ordinaryRows = app.slice(ordinaryStart, app.indexOf('</section>', ordinaryStart))
     expect(ordinaryRows).toContain("selectTaskUnlessSwiped(node.task)")
     expect(ordinaryRows).not.toContain('task-detail-trigger')
     expect(ordinaryRows).not.toContain('selectTask(subtask)')
     expect(ordinaryRows).not.toContain('aria-label="删除任务"')
-    expect(ordinaryRows).toContain('v-if="activeView===\'trash\'" class="task-actions"')
-    expect(ordinaryRows).toContain('restoreTask(node.task)')
-    expect(ordinaryRows).toContain('purgeTask(node.task)')
+    const trashRows = app.slice(app.indexOf('class="trash-groups"'), ordinaryStart)
+    expect(trashRows).toContain('class="task-actions"')
+    expect(trashRows).not.toContain('restoreTask(node.task)')
+    expect(trashRows).toContain('openTrashAction(node.task,$event)')
     const overdue = app.slice(app.indexOf('<section v-if="overdueTaskTree.length"'), app.indexOf('id="today-tasks-heading"'))
     expect(overdue).toContain('selectTaskUnlessSwiped(node.task)')
     expect(overdue).not.toContain('aria-label="打开任务详情"')
   })
 
   it('keeps the due tail as the final parent-row control and opens details from the task body', () => {
-    expect(app).toContain('@click="activeView===\'trash\'?undefined:selectTaskUnlessSwiped(node.task)"')
+    expect(app).toContain('@click="selectTaskUnlessSwiped(node.task)"')
     expect(app).toContain('<span v-if="node.task.due_at" class="task-tail">')
     expect(app).not.toContain('task-detail-trigger')
     expect(css).not.toContain('.task-detail-trigger')
@@ -798,7 +799,7 @@ describe('task and habit row decoration', () => {
   it('shows task drag handles only in an explicit available reorder mode', () => {
     expect(app).toContain('const taskReorderMode = ref(false)')
     expect(app).toContain("const taskReorderAvailable = computed(() => activeView.value === 'tasks' && totalPages.value === 1 && taskTree.value.length > 1)")
-    expect(app).toContain('class="soft-button reorder-mode-toggle task-reorder-toggle"')
+    expect(app).toContain('class="list-section-action"')
     expect(app).toContain("{{ taskReorderMode ? '完成' : '调整顺序' }}")
     expect(app).toContain('v-if="taskReorderMode" class="drag-handle task-drag-handle"')
     expect(app).toContain('if (!taskReorderAvailable.value) taskReorderMode.value = false')
@@ -835,13 +836,46 @@ describe('task and habit row decoration', () => {
   })
 
   it('exposes complete titles on every ellipsized visible task title node', () => {
-    expect(app.match(/<strong :title="node\.task\.title">\{\{node\.task\.title\}\}<\/strong>/g)).toHaveLength(2)
+    expect(app.match(/<strong :title="node\.task\.title">\{\{node\.task\.title\}\}<\/strong>/g)).toHaveLength(3)
     expect(app).not.toContain('<strong :title="subtask.title">{{subtask.title}}</strong>')
     expect(app).not.toContain('<strong>{{node.task.title}}</strong>')
   })
 
-  it('keeps the Trash restore action at least 44px tall', () => {
-    expect(css).toMatch(/\.restore\{[^}]*min-height:44px/)
+  it('keeps Trash row actions inside the ellipsis menu', () => {
+    const trashRows = app.slice(app.indexOf('class="trash-groups"'), app.indexOf('<section v-else'))
+    const trashMenu = app.slice(app.indexOf('class="trash-action-menu"'), app.indexOf('class="archived-action-mask"'))
+    expect(trashRows).not.toContain('class="restore"')
+    expect(trashRows).not.toContain('restoreTask(node.task)')
+    expect(trashMenu).toContain('@click="requestRestoreTask"')
+    expect(trashMenu).toContain('<ArchiveRestore/>恢复')
+    expect(trashMenu).toContain('@click="requestPurgeTask"')
+  })
+
+  it('keeps Trash deadlines visible on mobile before the action area', () => {
+    expect(css).not.toContain('.trash-list .task-tail{display:none}')
+    expect(css).toContain('.trash-list>.task-row{height:68px;min-height:68px;max-height:68px;grid-template-columns:minmax(0,1fr) minmax(38px,auto) auto;gap:6px}')
+  })
+
+  it('uses a real Trash action menu and typed permanent-delete confirmation', () => {
+    expect(app).toContain('const trashAction = ref<Task | null>(null)')
+    expect(app).toContain('const trashMenu = ref<HTMLElement | null>(null)')
+    expect(app).toContain('const trashPageTitle = ref<HTMLElement | null>(null)')
+    expect(app).toContain('aria-haspopup="menu"')
+    expect(app).toContain('@click.stop="openTrashAction(node.task,$event)"')
+    expect(app).toContain('ref="trashMenu" class="trash-action-menu" role="menu" aria-label="回收站任务操作"')
+    expect(app).toContain('@keydown.esc.stop="closeTrashAction()"')
+    expect(app).toContain('@keydown.tab.prevent="moveTrashMenuFocus($event.shiftKey?-1:1)"')
+    expect(app).toContain('@keydown.down.prevent="moveTrashMenuFocus(1)"')
+    expect(app).toContain('@keydown.up.prevent="moveTrashMenuFocus(-1)"')
+    expect(app).toContain("nextTick(() => trashMenu.value?.querySelector<HTMLElement>('[role=menuitem]')?.focus())")
+    expect(app).toContain('if (trigger?.isConnected) trigger.focus()')
+    expect(app).toContain('await purgeTask(task)')
+    expect(app).toContain('focusTrashActionTrigger(trigger)')
+    expect(app).toContain('else trashPageTitle.value?.focus()')
+    expect(app).toContain('@click="requestPurgeTask"')
+    expect(app).toContain("label: `输入任务名称“${task.title}”确认`")
+    expect(app).toContain("validate: (value) => value.trim() === task.title ? null : '任务名称不匹配'")
+    expect(app).not.toContain('class="trash-safety-note"')
   })
 
   it('reconciles only top-level Trash mutations and distinguishes refresh failure', () => {
@@ -849,7 +883,10 @@ describe('task and habit row decoration', () => {
     const mutationBlock = app.slice(app.indexOf('async function mutateTrashTask'), app.indexOf('async function restoreTask'))
     const restoreBlock = app.slice(app.indexOf('async function restoreTask'), app.indexOf('async function purgeTask'))
     const purgeBlock = app.slice(app.indexOf('async function purgeTask'), app.indexOf('async function addSubtask'))
-    expect(loadBlock).toContain('return await runLatestRequest')
+    expect(loadBlock).toContain("const committed = await runLatestRequest('trash'")
+    expect(loadBlock).toContain('if (committed && page.value > totalPages.value)')
+    expect(loadBlock).toContain('page.value = totalPages.value')
+    expect(loadBlock).toContain('return await loadTrash()')
     expect(mutationBlock).toContain('await taskMutationReconciler.run(')
     expect(mutationBlock).toContain('{ affectsTrash: true, affectsTaskView }')
     expect(mutationBlock).not.toContain('performTrashMutation(')
@@ -898,7 +935,7 @@ describe('task and habit row decoration', () => {
     expect(ordinaryRows).not.toContain('v-for="subtask in node.subtasks"')
     expect(app).not.toContain('collapsedTaskIds')
     expect(app).not.toContain('toggleTaskChildren')
-    expect(app.match(/<span v-if="node\.subtasks\.length" class="meta">/g)).toHaveLength(2)
+    expect(app.match(/<span v-if="node\.subtasks\.length" class="meta">/g)).toHaveLength(3)
     expect(app).toContain('v-for="subtask in selectedTaskSubtasks"')
     expect(app).toContain('class="subtask-detail"')
   })
@@ -1132,7 +1169,7 @@ describe('task and habit row decoration', () => {
     expect(mvpPanel).toContain("emit('summary', value)")
     expect(app).toContain('taskComposeTitle')
     expect(app).toContain('添加今天任务')
-    expect(app).toContain('v-if="activeView===\'trash\' || totalPages > 1 || totalTasks > 0"')
+    expect(app).toContain('<span class="trash-page-count">共 {{totalTasks}} 项</span>')
     expect(mvpPanel).toContain('class="empty-panel today-empty-panel"')
     expect(mvpPanel).toContain('添加习惯')
     expect(css).toContain('.today-context{')
@@ -1370,10 +1407,13 @@ describe('unified floating add interaction', () => {
     expect(app).toContain('<span class="task-detail-field-label">重复</span><select v-model="selectedTaskRepeat"')
     expect(app).toContain('<option value="yearly">每年</option><option value="after_completion">完成后重复</option><option value="custom">自定义…</option>')
     expect(app).toContain('完成后 <input v-model="composeAfterCompletionDays"')
+    expect(app).toContain('v-model="composeAfterCompletionUnit"')
     expect(app).toContain('完成后 <input v-model="selectedAfterCompletionDays"')
-    expect(app).toContain('每次完成后，将截止时间顺延对应天数；首版永不结束')
+    expect(app).toContain('v-model="selectedAfterCompletionUnit"')
+    expect(app).toContain('<option value="days">天</option><option value="months">月</option>')
+    expect(app).toContain('月末会自动取目标月最后一天')
     expect(app).toContain('buildTaskRecurrencePayload(composeRepeat.value')
-    expect(app).toContain('buildTaskRecurrencePayload(value, { afterCompletionDays, repeatConfig: config })')
+    expect(app).toContain('buildTaskRecurrencePayload(value, { afterCompletionDays, afterCompletionUnit, repeatConfig: config })')
     expect(app).toContain("api(`/tasks/${task.id}/recurrence`)")
     const createBlock = app.slice(app.indexOf('async function submitTaskCompose()'), app.indexOf('function toggleSidebar()'))
     expect(createBlock).toContain("api('/tasks',")
@@ -1388,7 +1428,7 @@ describe('unified floating add interaction', () => {
     expect(saveBlock).toContain('if (!taskSaved.due_at) {')
     expect(saveBlock).toContain('selectedTaskRecurrence.value = null')
     expect(saveBlock).toContain("selectedTaskRepeat.value = 'none'")
-    expect(saveBlock).toContain('await saveRepeat(taskSaved, repeatValue, repeatConfig, afterCompletionDays, recurrence)')
+    expect(saveBlock).toContain('await saveRepeat(taskSaved, repeatValue, repeatConfig, afterCompletionDays, afterCompletionUnit, recurrence)')
     const dueRemovalBlock = saveBlock.slice(saveBlock.indexOf('if (!taskSaved.due_at) {'), saveBlock.indexOf('} else {'))
     expect(dueRemovalBlock).not.toContain('saveRepeat(')
     expect(saveBlock).toContain("selectedRepeatError.value = ''")
@@ -1556,36 +1596,32 @@ describe('sidebar information hierarchy', () => {
     expect(css).toContain('width:3px;')
   })
 
-  it('groups folder and list editing actions into a clear compact hierarchy', () => {
+  it('uses the selected compact editor for list name, folder, and archive actions', () => {
     expect(app).toContain('aria-label="打开文件夹操作"')
     expect(app).toContain('aria-label="打开清单操作"')
     expect(app).toContain('panel-class="sidebar-action-sheet"')
-    expect(app).toContain(':label="sidebarAction ? `${sidebarAction.item.name}操作` : undefined"')
-    expect(app).toContain('class="sidebar-action-kind"')
-    expect(app).toContain('class="sidebar-action-group"')
-    expect(app).toContain('class="sidebar-action-group-title"')
-    expect(app).toContain('class="sidebar-action-danger"')
-    expect(app).toContain("sidebarAction.kind==='folders'?'文件夹':'清单'")
-    expect(app).toContain("sidebarAction.kind==='folders' ? `删除后，其中 ${sidebarActionFolderListCount} 个清单会移到“我的清单”` : '任务会保留，可从“已归档”恢复'")
-    expect(css).toContain('.sidebar-action-sheet{width:min(320px,calc(100vw - 24px));')
-    expect(css).toContain('.sidebar-action-group{display:grid;gap:2px;')
-    expect(css).toContain('.sidebar-action-danger{border-top:1px solid')
+    expect(app).toContain('panel-class="list-editor-sheet"')
+    expect(app).toContain('id="list-editor-title"')
+    expect(app).toContain('v-model="listEditorName"')
+    expect(app).toContain('v-model="listEditorFolderId"')
+    expect(app).toContain('>所在文件夹<')
+    expect(app).toContain("{{listEditorBusy?'正在保存…':'保存更改'}}")
+    expect(app).toContain('任务会保留，可从“已归档”恢复')
+    expect(app).not.toContain('class="list-editor-position"')
+    expect(app).not.toContain('aria-label="上移清单"')
+    expect(app).not.toContain('aria-label="下移清单"')
+    const archiveListBlock = app.slice(app.indexOf('async function archiveListFromEditor'), app.indexOf('function toggleFolder'))
+    expect(archiveListBlock).toContain("confirmAction(`归档清单「${item.name}」？`, '任务会保留，可从“已归档”恢复')")
+    expect(archiveListBlock).not.toContain("askText(`归档清单")
+    expect(css).toContain('.list-editor-sheet{width:min(460px,calc(100vw - 24px));')
+    expect(css).toContain('@media(min-width:931px){.app-sheet-mask:has(.list-editor-sheet){place-items:center;padding:24px}.app-sheet-mask:has(.list-editor-sheet) .list-editor-sheet{margin:0}}')
+    expect(css).toContain('.list-editor-form{display:grid;gap:17px;padding:18px 20px}')
+    expect(css).toContain('.list-editor-danger{border-top:1px solid var(--border-cream);')
     expect(app).toContain('@keydown.esc="sidebarCreateOpen=false;closeArchivedListAction();closeSidebarAction()"')
     expect(app).toContain('sidebarCreateOpen.value = false; sidebarAction.value = null')
     expect(app).not.toContain('aria-label="重命名文件夹" @click="renameEntity')
     expect(app).not.toContain('aria-label="重命名清单" @click="renameEntity')
   })
-
-  it('uses a dedicated second step for choosing a list destination', () => {
-    expect(app).toContain('<template v-if="listMoveMenuOpen">')
-    expect(app).toContain('aria-label="返回清单操作"')
-    expect(app).toContain('class="sidebar-action-move-title"')
-    expect(app).toContain('选择目标位置')
-    expect(app).toContain('role="menu" aria-label="选择目标文件夹"')
-    expect(app).toContain("'list-move-current':")
-    expect(css).toContain('.sidebar-action-move-back{min-height:44px;')
-    expect(css).toContain('.list-move-menu{display:grid;gap:2px;padding:0}')
-  })
 })
 
 describe('quiet index sidebar parity', () => {
@@ -1684,7 +1720,7 @@ describe('sidebar layout', () => {
     expect(app).not.toContain('list.is_inbox" class="list-drag-handle"')
   })
 
-  it('uses the handle-only touch contract and exposes same-scope move controls', () => {
+  it('uses the handle-only touch contract while keeping drag organization available', () => {
     expect(app).not.toContain('@pointerdown="startListLongPress(list, $event)"')
     expect(app).not.toContain('function startListLongPress')
     expect(app).not.toContain('listLongPressTimer')
@@ -1699,14 +1735,10 @@ describe('sidebar layout', () => {
     expect(app).toContain('@pointerup.stop="finishListDrag(list,$event)"')
     expect(app).toContain('@pointercancel.stop="cancelListDrag"')
     expect(app).toContain('listHandlePending = undefined')
-    expect(app).toContain('aria-label="上移清单"')
-    expect(app).toContain('aria-label="下移清单"')
-    expect(app).toContain("moveListWithinScope(sidebarAction.item as TaskList, 'up')")
-    expect(app).toContain("moveListWithinScope(sidebarAction.item as TaskList, 'down')")
-    expect(app).toContain('aria-label="移动到文件夹"')
-    expect(app).toContain('role="menu"')
-    expect(app).toContain('role="menuitem"')
-    expect(app).toContain('移出文件夹')
+    expect(app).not.toContain('aria-label="上移清单"')
+    expect(app).not.toContain('aria-label="下移清单"')
+    expect(app).not.toContain('class="list-editor-position"')
+    expect(app).toContain('v-model="listEditorFolderId"')
   })
 
   it('shows drag lift, folder highlighting, and insertion targets', () => {

frontend/src/visual-polish.test.ts

@@ -71,7 +71,7 @@ describe('approved five-detail polish', () => {
     expect(css).toMatch(/@media\(max-width:930px\)\{[\s\S]*?\.countdown-focus\{[^}]*height:140px/)
   })
 
-  it('uses approved Today-sourced page headers for task lists and Upcoming without changing Trash IA', () => {
+  it('uses approved Today-sourced page headers and the grouped Trash layout', () => {
     expect(app).toContain('v-if="activeView===\'tasks\' || activeView===\'upcoming\'" class="list-page-context"')
     expect(app).toContain('<h1 class="list-page-title" :title="activeName">{{ activeName }}</h1>')
     expect(app).toContain('<p class="list-page-summary">{{ taskOpenTotal === null ? \'待完成统计暂不可用\' : `还有 ${taskOpenTotal} 项待完成` }}</p>')
@@ -80,7 +80,23 @@ describe('approved five-detail polish', () => {
     expect(app).toContain('<span id="task-list-title" class="list-section-title">任务</span>')
     expect(app).toContain("v-if=\"activeView==='tasks' && taskReorderAvailable\"")
     expect(app).toContain('<span class="list-section-count">{{ totalTasks }}</span>')
-    expect(app).toContain("v-if=\"activeView==='tasks' && totalPages > 1\" class=\"list-page-meta\"")
+    expect(app).not.toContain("v-if=\"activeView==='tasks' && totalPages > 1\" class=\"list-page-meta\"")
+    const taskListEnd = app.indexOf('</section>', app.indexOf('class=\"task-list plain-list\"'))
+    expect(app.indexOf('class=\"pager\"')).toBeGreaterThan(taskListEnd)
+    expect(app).toContain('ref="taskListElement"')
+    expect(app).toContain("totalPages > 1 && (activeView!=='today' || !todaySectionCollapse.tasks)")
+    expect(app).toContain("taskListElement.value?.scrollIntoView({ block: 'start' })")
+    expect(app).not.toContain('class="list-page-meta" aria-live="polite"')
+    expect(app).toContain('<nav v-if="totalPages > 1 && (activeView!==\'today\' || !todaySectionCollapse.tasks)" class="pager" aria-label="任务分页">')
+    expect(app).toContain('class="pager-button pager-button--previous"')
+    expect(app).toContain('<ChevronLeft aria-hidden="true"/><span>上一页</span>')
+    expect(app).toContain('<span class="pager-status" aria-live="polite"><strong>{{page}} / {{totalPages}}</strong><span>共 {{ totalTasks }} 项</span></span>')
+    expect(app).toContain('class="pager-button pager-button--next"')
+    expect(app).toContain('<span>下一页</span><ChevronRight aria-hidden="true"/>')
+    expect(css).toContain('.pager{min-height:56px;display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:8px;margin:8px 0 14px;border-top:1px solid #e8e0d5;background:transparent}')
+    expect(css).toContain('.pager-button{min-width:0;min-height:44px;padding:0 8px;display:flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:9px;background:transparent;color:#b7421e;font-size:13px;font-weight:650;box-shadow:none;transition:transform .14s ease,background-color .14s ease,color .14s ease}')
+    expect(css).toContain('.pager-status{min-width:72px;display:grid;justify-items:center;gap:1px;color:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}')
+    expect(css).toContain('@media(max-width:390px){.pager-button{padding:0 4px}.pager{grid-template-columns:minmax(0,1fr) 72px minmax(0,1fr);gap:2px}}')
     expect(app).toContain("if (activeView.value === 'upcoming') { openParams.set('due_from', isoAtLocalDayOffset(0)); openParams.set('due_to', isoAtLocalDayOffset(8)) }")
     expect(app).toContain("new Date(task.due_at) >= startOfLocalDay(0) && new Date(task.due_at) < startOfLocalDay(8)")
     expect(app).not.toContain('class="list-search-clear"')
@@ -89,7 +105,8 @@ describe('approved five-detail polish', () => {
     expect(app).toContain(":aria-labelledby=\"activeView==='today' ? 'today-tasks-heading' : (activeView==='tasks' || activeView==='upcoming') ? 'task-list-title' : undefined\"")
     const taskTopbar = app.slice(app.indexOf('<header class="topbar"'), app.indexOf('</header>'))
     expect(taskTopbar).not.toContain('CompletedFilterPill v-if="activeView!==\'today\'"')
-    expect(app).toContain('v-if="activeView===\'trash\'" class="list-toolbar"')
+    expect(app).toContain('v-if="activeView===\'trash\'" class="trash-page-context"')
+    expect(app).toContain('class="trash-groups"')
     expect(css).toContain('.list-page-context{width:min(100%,630px);margin:0 auto 0;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:0 16px}')
     expect(css).toContain('.list-page-title{margin:0;font-size:34px;line-height:1.15;font-weight:700;letter-spacing:-.035em}')
     expect(css).toContain('.list-page-summary{margin:8px 0 18px;color:var(--muted);font-size:13px}')
@@ -122,16 +139,18 @@ describe('approved five-detail polish', () => {
     expect(css).toContain('.habit-section-heading{margin-top:0}')
     expect(css).toContain('main.list-main>.mvp-view{gap:0}')
     expect(css).toContain('main.list-main>.mvp-view>.habit-section-heading{width:100%}')
-    expect(css).toContain('main.list-main>.mvp-view>.habit-archive-section{border-top:1px solid #e8e0d5}')
+    expect(css).toContain('main.list-main>.mvp-view>.habit-archive-section{margin-top:24px;padding-top:12px;border-top:1px solid #e8e0d5}')
+    expect(css).toContain('.habit-archive-section{display:grid;gap:10px}')
+    expect(css).toContain('.habit-archive-toggle{width:100%;min-height:44px;display:grid;grid-template-columns:28px minmax(0,1fr) 28px;align-items:center;gap:8px;padding:0 4px;border:0;background:transparent;box-shadow:none')
+    expect(css).toContain('.archived-habits{margin-top:2px;')
   })
 
   it('uses one 58px plain-list contract for active task and habit rows', () => {
     expect(app).toContain("class=\"task-list plain-list\"")
-    expect(app).toContain("'task-row--trash':activeView==='trash'")
-    expect(app).toContain(':role="activeView===\'trash\' ? undefined : \'button\'"')
-    expect(app).toContain(':tabindex="activeView===\'trash\' ? undefined : 0"')
-    expect(app).toContain('@click="activeView===\'trash\'?undefined:selectTaskUnlessSwiped(node.task)"')
-    expect(app).toContain('v-if="activeView!==\'trash\'" class="task-check"')
+    expect(app).toContain('class="task-row task-row--trash"')
+    expect(app).toContain('class="task-main" role="button" tabindex="0"')
+    expect(app).toContain('@click="selectTaskUnlessSwiped(node.task)"')
+    expect(app).toContain('class="task-check" :aria-label="node.task.completed')
     expect(habits).toContain('class=\"habit-list plain-list\"')
     expect(habits).toContain('class=\"habit-row habit-row--full swipeable\"')
     expect(css).toContain('.plain-list{display:grid;gap:0;background:transparent;border:0;border-radius:0;box-shadow:none;overflow:visible}')

migrations/versions/0017_after_completion_unit.py

@@ -0,0 +1,29 @@
+"""add after_completion unit
+
+Revision ID: 0021_after_completion_unit
+Revises: 0020_calendar_subscriptions
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "0021_after_completion_unit"
+down_revision = "0020_calendar_subscriptions"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    with op.batch_alter_table("recurrence_templates") as batch_op:
+        batch_op.add_column(
+            sa.Column("after_completion_unit", sa.String(length=8), nullable=True)
+        )
+    op.execute(
+        "UPDATE recurrence_templates SET after_completion_unit = 'days' "
+        "WHERE trigger_mode = 'after_completion'"
+    )
+
+
+def downgrade() -> None:
+    with op.batch_alter_table("recurrence_templates") as batch_op:
+        batch_op.drop_column("after_completion_unit")

migrations/versions/0020_calendar_subscriptions.py

@@ -0,0 +1,52 @@
+"""restore calendar subscriptions after the reverted release
+
+Revision ID: 0020_calendar_subscriptions
+Revises: 0019_backup_imports
+
+The original revision reached production before the feature was reverted. Existing
+databases may therefore already contain the table while fresh databases do not.
+Keep the revision id and make the schema operation idempotent for both cases.
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "0020_calendar_subscriptions"
+down_revision = "0019_backup_imports"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    if "calendar_subscriptions" in sa.inspect(bind).get_table_names():
+        return
+    op.create_table(
+        "calendar_subscriptions",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("user_id", sa.Uuid(), nullable=False),
+        sa.Column("name", sa.String(length=120), nullable=False),
+        sa.Column("url", sa.Text(), nullable=False),
+        sa.Column("color", sa.String(length=32), nullable=False),
+        sa.Column("enabled", sa.Boolean(), nullable=False),
+        sa.Column("ics_cache", sa.Text(), nullable=True),
+        sa.Column("etag", sa.String(length=512), nullable=True),
+        sa.Column("last_modified", sa.String(length=512), nullable=True),
+        sa.Column("refreshed_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("last_error", sa.Text(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(
+        "ix_calendar_subscriptions_user_id", "calendar_subscriptions", ["user_id"]
+    )
+
+
+def downgrade() -> None:
+    bind = op.get_bind()
+    if "calendar_subscriptions" not in sa.inspect(bind).get_table_names():
+        return
+    op.drop_index("ix_calendar_subscriptions_user_id", table_name="calendar_subscriptions")
+    op.drop_table("calendar_subscriptions")

pyproject.toml

@@ -16,6 +16,8 @@ dependencies = [
   "structlog>=25,<26",
   "lunar-python>=1.2,<2",
   "httpx>=0.28,<1",
+  "icalendar>=6,<7",
+  "python-dateutil>=2.9,<3",
 ]
 
 [dependency-groups]

tests/test_after_completion_recurrence.py

@@ -48,7 +48,7 @@ def test_dst_gap_rolls_forward_and_ambiguous_time_uses_first_fold():
         due_has_time=True,
     )
     gap_due = recurrence_service._after_completion_due(
-        gap_task, datetime(2026, 3, 7, 15, tzinfo=UTC), 1, user
+        gap_task, datetime(2026, 3, 7, 15, tzinfo=UTC), 1, "days", user
     )
     assert gap_due == datetime(2026, 3, 8, 7, 30, tzinfo=UTC)  # local 03:30 after gap
 
@@ -60,7 +60,7 @@ def test_dst_gap_rolls_forward_and_ambiguous_time_uses_first_fold():
         due_has_time=True,
     )
     fold_due = recurrence_service._after_completion_due(
-        fold_task, datetime(2026, 10, 31, 15, tzinfo=UTC), 1, user
+        fold_task, datetime(2026, 10, 31, 15, tzinfo=UTC), 1, "days", user
     )
     assert fold_due == datetime(2026, 11, 1, 5, 30, tzinfo=UTC)  # first 01:30, fold=0
 
@@ -89,6 +89,30 @@ def test_user_timezone_is_the_calendar_contract_for_after_completion(client, mon
     assert datetime.fromisoformat(completed.json()["due_at"]) == datetime(2026, 3, 9, 9, 30, tzinfo=UTC)
 
 
+def test_month_interval_uses_calendar_month_clamping(client, monkeypatch):
+    inbox = boot(client)
+    task = create_after_completion_task(
+        client,
+        inbox,
+        due_at="2026-01-31T01:30:00Z",
+        after_completion_days=1,
+        after_completion_unit="months",
+    ).json()
+    monkeypatch.setattr(
+        "backend.recurrence_service.utcnow",
+        lambda: datetime(2026, 1, 30, 16, 30, tzinfo=UTC),  # 2026-01-31 00:30 Asia/Shanghai
+    )
+
+    completed = client.patch(
+        f"/api/v1/tasks/{task['id']}", json={"completed": True, "version": task["version"]}
+    )
+
+    assert completed.status_code == 200
+    assert datetime.fromisoformat(completed.json()["due_at"]) == datetime(2026, 2, 28, 1, 30, tzinfo=UTC)
+    recurrence = client.get(f"/api/v1/tasks/{task['id']}/recurrence").json()
+    assert recurrence["after_completion_unit"] == "months"
+
+
 def test_atomic_task_create_and_read_after_completion_recurrence(client):
     inbox = boot(client)
 
@@ -105,6 +129,7 @@ def test_atomic_task_create_and_read_after_completion_recurrence(client):
         "ends_at": None,
         "trigger_mode": "after_completion",
         "after_completion_days": 2,
+        "after_completion_unit": "days",
         "last_completed_at": None,
     }
 
@@ -122,6 +147,8 @@ def test_after_completion_configuration_validation(client):
         {"title": "零天", "list_id": inbox["id"], "due_at": "2026-03-08T01:30:00Z", "trigger_mode": "after_completion", "after_completion_days": 0},
         {"title": "太长", "list_id": inbox["id"], "due_at": "2026-03-08T01:30:00Z", "trigger_mode": "after_completion", "after_completion_days": 3651},
         {"title": "子任务", "list_id": inbox["id"], "parent_id": child["id"], "due_at": "2026-03-08T01:30:00Z", "trigger_mode": "after_completion", "after_completion_days": 1},
+        {"title": "只有单位", "list_id": inbox["id"], "due_at": "2026-03-08T01:30:00Z", "after_completion_unit": "months"},
+        {"title": "定期带月份", "list_id": inbox["id"], "due_at": "2026-03-08T01:30:00Z", "trigger_mode": "scheduled", "rrule": "FREQ=DAILY", "after_completion_unit": "months"},
     ]
     for payload in invalid_payloads:
         assert client.post("/api/v1/tasks", json=payload).status_code in {400, 422}

tests/test_app.py

@@ -400,6 +400,7 @@ def test_task_subtasks_and_recycle_bin(client):
     assert client.delete(f"/api/v1/tasks/{parent['id']}").status_code == 204
     trash = client.get("/api/v1/trash").json()["items"]
     assert len(trash) == 1
+    assert trash[0]["subtasks"][0]["title"] == "比较价格"
     assert client.post(f"/api/v1/tasks/{parent['id']}/restore").status_code == 200
 
 
@@ -566,6 +567,25 @@ def test_trash_cursor_paginates_more_than_fifty_items(client):
     assert second.json()["next_cursor"] is None
 
 
+def test_trash_page_orders_deadline_groups_globally(client):
+    client = initialized_client(client)
+    inbox = client.get("/api/v1/lists").json()[0]
+    rows = [
+        ("无日期", None),
+        ("未来", "2099-12-30T15:59:00Z"),
+        ("过期", "2020-01-02T15:59:00Z"),
+    ]
+    for title, due_at in rows:
+        payload = {"title": title, "list_id": inbox["id"]}
+        if due_at:
+            payload.update({"due_at": due_at, "due_has_time": False})
+        task = client.post("/api/v1/tasks", json=payload).json()
+        assert client.delete(f"/api/v1/tasks/{task['id']}").status_code == 204
+
+    page = client.get("/api/v1/trash", params={"page": 1, "page_size": 50}).json()
+    assert [item["title"] for item in page["items"]] == ["过期", "未来", "无日期"]
+
+
 def test_recycle_bin_restore_and_permanent_delete_include_subtasks(client):
     client = initialized_client(client)
     inbox = client.get("/api/v1/lists").json()[0]

tests/test_backup_v2.py

@@ -200,6 +200,36 @@ def test_merge_same_backup_is_idempotent_via_import_ledger(client):
     assert asyncio.run(counts()) == (1, 1)
 
 
+def test_legacy_backup_without_completion_unit_is_idempotent(client):
+    inbox = boot(client)
+    client.post(
+        "/api/v1/tasks",
+        json={
+            "title": "旧版完成后重复",
+            "list_id": inbox["id"],
+            "due_at": "2026-03-08T01:30:00Z",
+            "trigger_mode": "after_completion",
+            "after_completion_days": 2,
+        },
+    )
+    content = client.get("/api/v1/backup/export.zip").content
+    recurrences = _archive_rows(content, "recurrences")
+    for recurrence in recurrences:
+        recurrence.pop("after_completion_unit", None)
+    legacy_content = _replace_entities(content, {"recurrences": recurrences})
+
+    first_token = _preflight(client, legacy_content).json()["preflight_token"]
+    assert client.post(
+        "/api/v1/backup/restore", json={"preflight_token": first_token, "mode": "merge"}
+    ).status_code == 200
+    second_token = _preflight(client, legacy_content).json()["preflight_token"]
+    second = client.post(
+        "/api/v1/backup/restore", json={"preflight_token": second_token, "mode": "merge"}
+    )
+    assert second.status_code == 200
+    assert second.json()["already_imported"] is True
+
+
 def test_invalid_zip_variants_are_rejected_before_any_write(client):
     inbox = boot(client)
     before = len(client.get("/api/v1/tasks", params={"list_id": inbox["id"]}).json()["items"])

tests/test_calendar_backup_compat.py

@@ -0,0 +1,60 @@
+import asyncio
+import json
+import zipfile
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import async_sessionmaker
+
+from backend.backup.archive import parse_archive_path
+from backend.backup.service import export_v2, validate_archive
+from backend.db import get_engine
+from backend.models import CalendarSubscription, User
+
+
+def initialized(client):
+    response = client.post(
+        "/api/v1/setup/initialize",
+        json={"username": "owner", "password": "correct horse battery staple"},
+    )
+    assert response.status_code == 201
+    return client
+
+
+def test_backup_exports_calendar_subscriptions_and_accepts_old_archive(client, tmp_path):
+    client = initialized(client)
+
+    async def prepare_and_export():
+        factory = async_sessionmaker(get_engine(), expire_on_commit=False)
+        async with factory() as db:
+            user = await db.scalar(select(User))
+            db.add(CalendarSubscription(
+                user_id=user.id,
+                name="Work",
+                url="https://example.com/work.ics",
+                color="#123abc",
+                ics_cache="BEGIN:VCALENDAR\r\nVERSION:2.0\r\nEND:VCALENDAR\r\n",
+            ))
+            await db.commit()
+            path = await export_v2(db, user)
+            await db.commit()
+            return path
+
+    path = asyncio.run(prepare_and_export())
+    try:
+        parsed = parse_archive_path(path)
+        assert parsed.entities["calendar_subscriptions"][0]["name"] == "Work"
+        validate_archive(parsed)
+
+        old_path = tmp_path / "old.zip"
+        with zipfile.ZipFile(path) as source, zipfile.ZipFile(old_path, "w") as target:
+            manifest = json.loads(source.read("manifest.json"))
+            manifest["entities"].pop("calendar_subscriptions")
+            manifest["checksums"].pop("data/calendar_subscriptions.json")
+            for name in source.namelist():
+                if name not in {"manifest.json", "data/calendar_subscriptions.json"}:
+                    target.writestr(name, source.read(name))
+            from backend.backup.archive import canonical_json
+            target.writestr("manifest.json", canonical_json(manifest))
+        validate_archive(parse_archive_path(old_path))
+    finally:
+        path.unlink(missing_ok=True)

tests/test_calendar_subscriptions.py

@@ -0,0 +1,408 @@
+import asyncio
+import socket
+from datetime import UTC, datetime, timedelta
+from types import SimpleNamespace
+
+import pytest
+from fastapi import HTTPException
+
+from backend.calendar import (
+    FetchResult,
+    parse_ics_events,
+    validate_calendar_url,
+)
+from backend.calendar_refresh import refresh_due_subscriptions, refresh_subscription_cache
+
+ICS = b"""BEGIN:VCALENDAR\r
+VERSION:2.0\r
+BEGIN:VEVENT\r
+UID:one\r
+DTSTART:20260920T090000Z\r
+DTEND:20260920T100000Z\r
+SUMMARY:Meeting\r
+DESCRIPTION:Body line one\\nBody line two\r
+LOCATION:Meeting room\r
+END:VEVENT\r
+END:VCALENDAR\r
+"""
+RECURRING_ICS = b"""BEGIN:VCALENDAR\r
+VERSION:2.0\r
+BEGIN:VEVENT\r
+UID:daily\r
+DTSTART;TZID=Asia/Shanghai:20260920T090000\r
+DTEND;TZID=Asia/Shanghai:20260920T100000\r
+RRULE:FREQ=DAILY;COUNT=3\r
+EXDATE;TZID=Asia/Shanghai:20260921T090000\r
+SUMMARY:Daily\r
+END:VEVENT\r
+BEGIN:VEVENT\r
+UID:daily\r
+RECURRENCE-ID;TZID=Asia/Shanghai:20260922T090000\r
+DTSTART;TZID=Asia/Shanghai:20260922T110000\r
+DTEND;TZID=Asia/Shanghai:20260922T120000\r
+SUMMARY:Moved\r
+END:VEVENT\r
+END:VCALENDAR\r
+"""
+INHERITED_DURATION_ICS = RECURRING_ICS.replace(
+    b"DTEND;TZID=Asia/Shanghai:20260922T120000\r\n", b""
+).replace(
+    b"DTEND;TZID=Asia/Shanghai:20260920T100000\r\n",
+    b"DTEND;TZID=Asia/Shanghai:20260920T103000\r\n",
+)
+
+
+def initialized(client, username="owner"):
+    response = client.post(
+        "/api/v1/setup/initialize",
+        json={"username": username, "password": "correct horse battery staple"},
+    )
+    assert response.status_code == 201
+    return client
+
+
+def test_parser_restored_with_recurrence_exdates_overrides_and_timezone():
+    events = parse_ics_events(
+        RECURRING_ICS,
+        "Work",
+        "#123456",
+        datetime(2026, 9, 19, tzinfo=UTC),
+        datetime(2026, 9, 24, tzinfo=UTC),
+        "Asia/Shanghai",
+    )
+    assert [(event["title"], event["starts_at"].isoformat()) for event in events] == [
+        ("Daily", "2026-09-20T01:00:00+00:00"),
+        ("Moved", "2026-09-22T03:00:00+00:00"),
+    ]
+
+
+def test_recurrence_override_inherits_master_duration_and_source_id():
+    events = parse_ics_events(
+        INHERITED_DURATION_ICS,
+        "Work",
+        "#123456",
+        datetime(2026, 9, 19, tzinfo=UTC),
+        datetime(2026, 9, 24, tzinfo=UTC),
+        "Asia/Shanghai",
+        source_id="source-1",
+    )
+    moved = next(event for event in events if event["title"] == "Moved")
+    assert (moved["ends_at"] - moved["starts_at"]).total_seconds() == 90 * 60
+    assert moved["source_id"] == "source-1"
+
+
+def test_parser_limits_recurrence_expansion():
+    endless = ICS.replace(b"UID:one", b"UID:one\r\nRRULE:FREQ=SECONDLY")
+    with pytest.raises(ValueError, match="recurrence limit"):
+        parse_ics_events(
+            endless,
+            "x",
+            "#000000",
+            datetime(2026, 9, 20, tzinfo=UTC),
+            datetime(2026, 9, 21, tzinfo=UTC),
+            "UTC",
+            recurrence_limit=10,
+        )
+
+
+def test_url_validation_rejects_fragments_userinfo_and_mixed_dns(monkeypatch):
+    with pytest.raises(HTTPException):
+        validate_calendar_url("https://example.com/a.ics#secret")
+    with pytest.raises(HTTPException):
+        validate_calendar_url("https://[email protected]/a.ics")
+    monkeypatch.setattr(socket, "getaddrinfo", lambda *args, **kwargs: [
+        (socket.AF_INET, socket.SOCK_STREAM, 6, "", ("93.184.216.34", 443)),
+        (socket.AF_INET, socket.SOCK_STREAM, 6, "", ("127.0.0.1", 443)),
+    ])
+    with pytest.raises(HTTPException, match="public"):
+        validate_calendar_url("https://example.com/a.ics")
+
+
+def test_subscription_crud_refresh_events_and_stale_cache(client, monkeypatch):
+    client = initialized(client)
+    monkeypatch.setattr(
+        "backend.calendar.validate_calendar_url",
+        lambda url: (url, "93.184.216.34", 443),
+    )
+    calls = []
+
+    def fetch(url, *, etag=None, last_modified=None):
+        calls.append((url, etag, last_modified))
+        if len(calls) == 1:
+            return FetchResult(ICS, '"v1"', "Sun, 20 Sep 2026 00:00:00 GMT", False)
+        raise HTTPException(502, "upstream down")
+
+    monkeypatch.setattr("backend.calendar.fetch_calendar", fetch)
+    created = client.post(
+        "/api/v1/calendar-subscriptions",
+        json={"name": " Work ", "url": "https://example.com/work.ics", "color": "#123abc"},
+    )
+    assert created.status_code == 201
+    body = created.json()
+    assert body["name"] == "Work"
+    assert body["enabled"] is True
+    assert body["stale"] is False
+    assert calls == [("https://example.com/work.ics", None, None)]
+
+    listed = client.get("/api/v1/calendar-subscriptions")
+    assert [item["id"] for item in listed.json()] == [body["id"]]
+
+    events = client.get(
+        "/api/v1/calendar-events",
+        params={"start": "2026-09-20T00:00:00Z", "end": "2026-09-21T00:00:00Z"},
+    )
+    assert events.status_code == 200
+    assert events.json()["events"][0]["title"] == "Meeting"
+    assert events.json()["events"][0]["description"] == "Body line one\nBody line two"
+    assert events.json()["events"][0]["location"] == "Meeting room"
+    assert events.json()["sources"][0]["stale"] is False
+
+    refreshed = client.post(f"/api/v1/calendar-subscriptions/{body['id']}/refresh")
+    assert refreshed.status_code == 200
+    assert refreshed.json()["stale"] is True
+    assert refreshed.json()["last_error"] == "upstream down"
+    assert calls[1][1:] == ('"v1"', "Sun, 20 Sep 2026 00:00:00 GMT")
+
+    patched = client.patch(
+        f"/api/v1/calendar-subscriptions/{body['id']}",
+        json={"name": "Personal", "enabled": False, "color": "#abcdef"},
+    )
+    assert patched.status_code == 200
+    assert patched.json()["name"] == "Personal"
+    assert patched.json()["enabled"] is False
+    assert client.delete(f"/api/v1/calendar-subscriptions/{body['id']}").status_code == 204
+
+
+def test_parser_bounds_large_event_text_fields():
+    oversized = ICS.replace(
+        b"DESCRIPTION:Body line one\\nBody line two",
+        b"DESCRIPTION:" + b"x" * 3_000,
+    ).replace(
+        b"LOCATION:Meeting room",
+        b"LOCATION:" + b"y" * 1_000,
+    )
+    event = parse_ics_events(
+        oversized,
+        "Work",
+        "#123456",
+        datetime(2026, 9, 20, tzinfo=UTC),
+        datetime(2026, 9, 21, tzinfo=UTC),
+        "UTC",
+    )[0]
+    assert event["description"] == "x" * 2_000
+    assert event["location"] == "y" * 500
+
+
+def test_events_validate_window_and_disabled_sources_are_skipped(client, monkeypatch):
+    client = initialized(client)
+    monkeypatch.setattr(
+        "backend.calendar.validate_calendar_url",
+        lambda url: (url, "93.184.216.34", 443),
+    )
+    monkeypatch.setattr(
+        "backend.calendar.fetch_calendar",
+        lambda *args, **kwargs: FetchResult(ICS, None, None, False),
+    )
+    sub = client.post(
+        "/api/v1/calendar-subscriptions",
+        json={"name": "x", "url": "https://example.com/x.ics", "enabled": False},
+    ).json()
+    assert sub["enabled"] is False
+    response = client.get(
+        "/api/v1/calendar-events",
+        params={"start": "2026-09-21T00:00:00Z", "end": "2026-09-20T00:00:00Z"},
+    )
+    assert response.status_code == 422
+    valid = client.get(
+        "/api/v1/calendar-events",
+        params={"start": "2026-09-20T00:00:00Z", "end": "2026-09-21T00:00:00Z"},
+    )
+    assert valid.json() == {"events": [], "sources": []}
+
+
+def test_subscription_ownership_is_strict(client, monkeypatch):
+    client = initialized(client)
+    monkeypatch.setattr(
+        "backend.calendar.validate_calendar_url",
+        lambda url: (url, "93.184.216.34", 443),
+    )
+    monkeypatch.setattr(
+        "backend.calendar.fetch_calendar",
+        lambda *args, **kwargs: FetchResult(ICS, None, None, False),
+    )
+    sub = client.post(
+        "/api/v1/calendar-subscriptions",
+        json={"name": "private", "url": "https://example.com/private.ics"},
+    ).json()
+    client.post("/api/v1/auth/logout")
+    assert client.patch(f"/api/v1/calendar-subscriptions/{sub['id']}", json={"name": "x"}).status_code == 401
+    assert client.delete(f"/api/v1/calendar-subscriptions/{sub['id']}").status_code == 401
+
+
+def test_due_enabled_subscriptions_refresh_automatically(client, monkeypatch):
+    client = initialized(client)
+    monkeypatch.setattr(
+        "backend.calendar.validate_calendar_url",
+        lambda url: (url, "93.184.216.34", 443),
+    )
+    calls = []
+
+    def fetch(url, *, etag=None, last_modified=None):
+        calls.append(url)
+        return FetchResult(ICS, None, None, False)
+
+    monkeypatch.setattr("backend.calendar.fetch_calendar", fetch)
+    client.post(
+        "/api/v1/calendar-subscriptions",
+        json={"name": "enabled", "url": "https://example.com/enabled.ics"},
+    )
+    client.post(
+        "/api/v1/calendar-subscriptions",
+        json={"name": "disabled", "url": "https://example.com/disabled.ics", "enabled": False},
+    )
+
+    async def refresh():
+        from sqlalchemy.ext.asyncio import async_sessionmaker
+
+        from backend.db import get_engine
+
+        factory = async_sessionmaker(get_engine(), expire_on_commit=False)
+        async with factory() as db:
+            return await refresh_due_subscriptions(
+                db,
+                now=datetime.now(UTC) + timedelta(minutes=16),
+                refresh_interval=timedelta(minutes=15),
+            )
+
+    assert asyncio.run(refresh()) == 1
+    assert calls == [
+        "https://example.com/enabled.ics",
+        "https://example.com/disabled.ics",
+        "https://example.com/enabled.ics",
+    ]
+
+
+def test_failed_cached_refresh_preserves_last_success_timestamp(monkeypatch):
+    original_refresh = datetime(2026, 9, 20, tzinfo=UTC)
+    row = SimpleNamespace(
+        id="source-1",
+        url="https://example.com/work.ics",
+        name="work",
+        color="#123456",
+        ics_cache=ICS.decode(),
+        etag=None,
+        last_modified=None,
+        refreshed_at=original_refresh,
+        last_error=None,
+    )
+
+    class FakeDb:
+        async def refresh(self, _row):
+            pass
+
+        async def commit(self):
+            pass
+
+        async def rollback(self):
+            pass
+
+    def fail(*args, **kwargs):
+        raise HTTPException(502, "upstream down")
+
+    monkeypatch.setattr("backend.calendar.fetch_calendar", fail)
+    assert asyncio.run(refresh_subscription_cache(FakeDb(), row)) is False
+    assert row.refreshed_at == original_refresh
+    assert row.last_error == "upstream down"
+
+
+def test_refresh_discards_response_when_url_changes_in_flight(monkeypatch):
+    row = SimpleNamespace(
+        id="source-1",
+        url="https://example.com/old.ics",
+        name="work",
+        color="#123456",
+        ics_cache="old cache",
+        etag=None,
+        last_modified=None,
+        refreshed_at=datetime(2026, 9, 20, tzinfo=UTC),
+        last_error=None,
+    )
+
+    class FakeDb:
+        committed = False
+
+        async def refresh(self, target):
+            target.url = "https://example.com/new.ics"
+            target.ics_cache = None
+            target.refreshed_at = None
+
+        async def commit(self):
+            self.committed = True
+
+        async def rollback(self):
+            pass
+
+    monkeypatch.setattr(
+        "backend.calendar.fetch_calendar",
+        lambda *args, **kwargs: FetchResult(ICS, None, None, False),
+    )
+    db = FakeDb()
+    assert asyncio.run(refresh_subscription_cache(db, row)) is False
+    assert row.url == "https://example.com/new.ics"
+    assert row.ics_cache is None
+    assert db.committed is False
+
+
+def test_failed_source_waits_until_next_interval_and_does_not_abort_batch(client, monkeypatch):
+    client = initialized(client)
+    monkeypatch.setattr(
+        "backend.calendar.validate_calendar_url",
+        lambda url: (url, "93.184.216.34", 443),
+    )
+    monkeypatch.setattr(
+        "backend.calendar.fetch_calendar",
+        lambda *args, **kwargs: FetchResult(ICS, None, None, False),
+    )
+    first = client.post(
+        "/api/v1/calendar-subscriptions",
+        json={"name": "first", "url": "https://example.com/first.ics"},
+    ).json()
+    client.post(
+        "/api/v1/calendar-subscriptions",
+        json={"name": "second", "url": "https://example.com/second.ics"},
+    )
+    attempts = []
+
+    def fetch(url, **kwargs):
+        attempts.append(url)
+        if url.endswith("first.ics"):
+            raise HTTPException(502, "upstream down")
+        return FetchResult(ICS, None, None, False)
+
+    monkeypatch.setattr("backend.calendar.fetch_calendar", fetch)
+
+    async def refresh_twice():
+        from sqlalchemy.ext.asyncio import async_sessionmaker
+
+        from backend.db import get_engine
+
+        factory = async_sessionmaker(get_engine(), expire_on_commit=False)
+        now = datetime.now(UTC) + timedelta(minutes=16)
+        async with factory() as db:
+            first_count = await refresh_due_subscriptions(
+                db, now=now, refresh_interval=timedelta(minutes=15)
+            )
+        async with factory() as db:
+            second_count = await refresh_due_subscriptions(
+                db, now=now + timedelta(minutes=1), refresh_interval=timedelta(minutes=15)
+            )
+        return first_count, second_count
+
+    assert asyncio.run(refresh_twice()) == (2, 0)
+    assert attempts == [
+        "https://example.com/first.ics",
+        "https://example.com/second.ics",
+    ]
+    listed = client.get("/api/v1/calendar-subscriptions").json()
+    failed = next(item for item in listed if item["id"] == first["id"])
+    assert failed["stale"] is True

uv.lock

@@ -277,8 +277,10 @@ dependencies = [
     { name = "asyncpg" },
     { name = "fastapi" },
     { name = "httpx" },
+    { name = "icalendar" },
     { name = "lunar-python" },
     { name = "pydantic-settings" },
+    { name = "python-dateutil" },
     { name = "python-multipart" },
     { name = "sqlalchemy", extra = ["asyncio"] },
     { name = "structlog" },
@@ -301,8 +303,10 @@ requires-dist = [
     { name = "asyncpg", specifier = ">=0.30,<1" },
     { name = "fastapi", specifier = ">=0.116,<1" },
     { name = "httpx", specifier = ">=0.28,<1" },
+    { name = "icalendar", specifier = ">=6,<7" },
     { name = "lunar-python", specifier = ">=1.2,<2" },
     { name = "pydantic-settings", specifier = ">=2.10,<3" },
+    { name = "python-dateutil", specifier = ">=2.9,<3" },
     { name = "python-multipart", specifier = ">=0.0.20,<1" },
     { name = "sqlalchemy", extras = ["asyncio"], specifier = ">=2.0,<3" },
     { name = "structlog", specifier = ">=25,<26" },
@@ -474,6 +478,19 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/2a/39/e50c7c3a983047577ee07d2a9e53faf5a69493943ec3f6a384bdc792deb2/httpx-0.28.1-py3-none-any.whl", hash = "sha256:d909fcccc110f8c7faf814ca82a9a4d816bc5a6dbfea25d6591d6985b8ba59ad", size = 73517 },
 ]
 
+[[package]]
+name = "icalendar"
+version = "6.3.2"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "python-dateutil" },
+    { name = "tzdata" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/5d/70/458092b3e7c15783423fe64d07e63ea3311a597e723be6a1060513e3db93/icalendar-6.3.2.tar.gz", hash = "sha256:e0c10ecbfcebe958d33af7d491f6e6b7580d11d475f2eeb29532d0424f9110a1", size = 178422 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/06/ee/2ff96bb5bd88fe03ab90aedf5180f96dc0f3ae4648ca264b473055bcaaff/icalendar-6.3.2-py3-none-any.whl", hash = "sha256:d400e9c9bb8c025e5a3c77c236941bb690494be52528a0b43cc7e8b7c9505064", size = 242403 },
+]
+
 [[package]]
 name = "idna"
 version = "3.19"
@@ -742,6 +759,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/03/e2/08a497ef684b88559c9cc5f4ad53a37e7b99e727094a86d6ea32536d5d3c/pytest_asyncio-1.4.0-py3-none-any.whl", hash = "sha256:933ca923a23075a87fb7070c0ec272a6848489824d887c85c812670932835aa1", size = 16930 },
 ]
 
+[[package]]
+name = "python-dateutil"
+version = "2.9.0.post0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "six" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/66/c0/0c8b6ad9f17a802ee498c46e004a0eb49bc148f2fd230864601a86dcf6db/python-dateutil-2.9.0.post0.tar.gz", hash = "sha256:37dd54208da7e1cd875388217d5e00ebd4179249f90fb72437e91a35459a0ad3", size = 342432 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/ec/57/56b9bcc3c9c6a792fcbaf139543cee77261f3651ca9da0c93f5c1221264b/python_dateutil-2.9.0.post0-py2.py3-none-any.whl", hash = "sha256:a8b2bc7bffae282281c8140a97d3aa9c14da0b136dfe83f850eea9a5f7470427", size = 229892 },
+]
+
 [[package]]
 name = "python-dotenv"
 version = "1.2.3"
@@ -831,6 +860,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/fc/07/d781f8f8e1ac24bef9f3269cf62ffb1407ca24c3a8f12e5e22874f90528c/ruff-0.16.6-py3-none-win_arm64.whl", hash = "sha256:7a976c79b958f94e50a022a19f0f8c87387448020935ec14fc74331bd0a7f2c5", size = 10412850 },
 ]
 
+[[package]]
+name = "six"
+version = "1.17.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/94/e7/b2c673351809dca68a0e064b6af791aa332cf192da575fd474ed7d6f16a2/six-1.17.0.tar.gz", hash = "sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81", size = 34031 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/b7/ce/149a00dd41f10bc29e5921b496af8b574d8413afcd5e30dfa0ed46c2cc5e/six-1.17.0-py2.py3-none-any.whl", hash = "sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274", size = 11050 },
+]
+
 [[package]]
 name = "sqlalchemy"
 version = "2.0.52"
@@ -914,6 +952,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/67/81/4add07e5172b7ac40d8ed5ff580409a7801a4fe26d529bdd915401dabfbe/typing_inspection-0.4.4-py3-none-any.whl", hash = "sha256:65b8397ba37ccbce054456aaccddfc91e6e3083c92824df348d96ca832f3f147", size = 14750 },
 ]
 
+[[package]]
+name = "tzdata"
+version = "2026.4"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/e4/31/3d74fa778a63b98b7374323befcc0be5ab3bd94afd4096a0124e7379152c/tzdata-2026.4.tar.gz", hash = "sha256:f1b8bd365d8d210c55353f4d7f8d6d8561c0ba50d704b700d195a9424bba0d79", size = 199350 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/f9/bc/8737e8d54cf51106118039b83f485a4783112fab49ea9d044b234978a46e/tzdata-2026.4-py2.py3-none-any.whl", hash = "sha256:c2169a8b0a7a5e9674da5a135ccdfb2b3e671b333ed9fed17b41f73c34476e81", size = 347494 },
+]
+
 [[package]]
 name = "uuid-utils"
 version = "0.17.0"