feat: add calendar frontend

2026-09-20 12:42:40 +08:00
29 changed files with 86 additions and 1367 deletions
@@ -152,18 +152,6 @@ 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)):
@@ -182,11 +170,7 @@ 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):
-                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")
+                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:
@@ -19,7 +19,6 @@ from backend.models import (
    BackupImport,
    BackupImportEntity,
    BackupPreflight,
-    CalendarSubscription,
    Countdown,
    Folder,
    Habit,
@@ -66,7 +65,6 @@ ENTITY_MODELS = {
    "habit_pauses": HabitPause,
    "countdowns": Countdown,
    "memos": Memo,
-    "calendar_subscriptions": CalendarSubscription,
    "attachments": Attachment,
 }
 RELATIONS = {
@@ -354,9 +352,6 @@ 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
@@ -397,9 +392,6 @@ 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")
@@ -526,8 +518,6 @@ 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


@@ -621,16 +611,7 @@ 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,
-                CalendarSubscription,
-                Memo,
-                Countdown,
-                Task,
-                Habit,
-                TaskList,
-                Folder,
-            ):
+            for model in (Attachment, 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))
@@ -1,254 +0,0 @@
-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"]))
@@ -1,224 +0,0 @@
-from datetime import UTC, 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 .db import get_db
-from .models import CalendarSubscription, User, utcnow
-
-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
-
-
-async def _refresh(db: AsyncSession, row: CalendarSubscription) -> None:
-    try:
-        result = await __import__("asyncio").to_thread(
-            calendar_service.fetch_calendar, row.url, etag=row.etag, last_modified=row.last_modified
-        )
-        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 = utcnow()
-        row.last_error = None
-    except Exception as exc:
-        row.last_error = exc.detail if isinstance(exc, HTTPException) else str(exc)
-        if not row.ics_cache:
-            await db.rollback()
-            raise HTTPException(502, row.last_error) from exc
-    await db.commit()
-
-
-@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(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(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(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}
@@ -30,7 +30,6 @@ from .auth import (
    verify_password,
 )
 from .backup import router as backup_router
-from .calendar_router import router as calendar_router
 from .db import create_schema, get_db
 from .models import (
    AppState,
@@ -121,7 +120,6 @@ 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)

@@ -999,7 +997,7 @@ 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", "after_completion_unit"})
+    data = payload.model_dump(exclude={"rrule", "trigger_mode", "after_completion_days"})
    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,
@@ -1019,9 +1017,6 @@ 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)
@@ -154,7 +154,6 @@ 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)

@@ -302,23 +301,6 @@ 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)
@@ -251,22 +251,17 @@ 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
-            or self.after_completion_unit is not None
+            self.rrule is None or self.after_completion_days 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


@@ -276,7 +271,6 @@ 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):
@@ -436,7 +430,6 @@ 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,
    }

@@ -459,9 +452,6 @@ 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)
@@ -473,7 +463,6 @@ 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,
    }

@@ -515,18 +504,12 @@ 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:
@@ -534,7 +517,6 @@ 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
@@ -551,7 +533,6 @@ 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,
    }

@@ -1377,7 +1358,7 @@ 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", "after_completion_unit", "last_completed_at"]) for x in recurrences],
+        "recurrences": [serialize(x, ["id", "task_id", "rrule", "starts_at", "ends_at", "trigger_mode", "after_completion_days", "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],
@@ -1589,17 +1570,11 @@ 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")
-            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
+        elif not isinstance(rrule, str):
+            raise HTTPException(422, "定期重复缺少 RRULE")
        db.add(RecurrenceTemplate(
            user_id=user.id,
            task_id=task_id,
@@ -1608,7 +1583,6 @@ 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,
        ))
@@ -2,7 +2,6 @@ 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
@@ -26,15 +25,10 @@ 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, value: int, unit: str | None, user: User
-) -> datetime:
+def _after_completion_due(task: Task, completed_at: datetime, days: int, user: User) -> datetime:
    zone = _user_zone(user)
    completed_local = completed_at.astimezone(zone)
-    if unit == "months":
-        target_date = completed_local.date() + relativedelta(months=value)
-    else:
-        target_date = completed_local.date() + timedelta(days=value)
+    target_date = completed_local.date() + timedelta(days=days)
    if task.due_has_time:
        due_local = task.due_at.astimezone(zone)
        wall_time = due_local.timetz().replace(tzinfo=None)
@@ -73,11 +67,7 @@ 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,
-                recurrence.after_completion_unit,
-                user,
+                task, completed_at, recurrence.after_completion_days, user
            )
            changes["completed"] = False
            changes["due_at"] = next_due
@@ -125,7 +125,6 @@ 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
@@ -137,12 +136,7 @@ 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
-            or self.after_completion_unit 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
        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:
@@ -150,15 +144,10 @@ 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":
-            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")
+        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")
        return self


@@ -160,7 +160,7 @@ test('all bottom destinations expose one active page and desktop layout stays un
  const navigation = page.getByRole('navigation', { name: '主要导航' })
  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']) {
+    for (const label of ['今天', '习惯', '倒数日', '备忘录', '日历']) {
      await bottomTab(page, label).click()
      await expect(navigation.locator('[aria-current="page"]')).toHaveCount(1)
      await expect(bottomTab(page, label)).toHaveAttribute('aria-current', 'page')
@@ -200,49 +200,6 @@ 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)
@@ -1,63 +0,0 @@
-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).toContainText('1 / 2')
-
-  const firstPageGeometry = await page.evaluate(() => {
-    const list = document.querySelector<HTMLElement>('.task-list')!.getBoundingClientRect()
-    const pagerBox = document.querySelector<HTMLElement>('.pager')!.getBoundingClientRect()
-    return { listBottom: list.bottom, pagerTop: pagerBox.top }
-  })
-  expect(firstPageGeometry.pagerTop).toBeGreaterThanOrEqual(firstPageGeometry.listBottom)
-
-  await pager.getByRole('button', { name: '下一页' }).click()
-  await expect(pager).toContainText('2 / 2')
-  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)
-})
@@ -5,7 +5,7 @@ import {
  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 AfterCompletionUnit, type MarkdownFormat, type TaskRepeatConfig, type TaskRepeatOption } from './lib/task-utils'
+import { applyMarkdownFormat, buildTaskDueDraft, buildTaskRecurrencePayload, defaultTaskDueAt, fromDateTimeLocal, groupTaskTree, isSameTaskSortTier, moveItemWithinScope, parseTaskDueDraft, parseTaskRecurrence, parseTaskRrule, renderMarkdown, 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'
@@ -32,7 +32,7 @@ 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; after_completion_unit: AfterCompletionUnit | null }
+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' | 'calendar' | 'settings'

 const initialized = ref<boolean | null>(null)
@@ -56,7 +56,6 @@ let purgeListTrigger: HTMLElement | null = null
 const tasks = ref<Task[]>([])
 const overdueTasks = ref<Task[]>([])
 const trash = ref<Task[]>([])
-const taskListElement = ref<HTMLElement | null>(null)
 const NAVIGATION_STORAGE_KEY = 'dodo.navigation'
 const restoredNavigation = readStoredNavigation(window.localStorage, NAVIGATION_STORAGE_KEY)
 const activeList = ref(restoredNavigation.listId)
@@ -159,11 +158,9 @@ 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)
@@ -208,7 +205,6 @@ function openTaskCompose() {
  composeDescription.value = ''
  composeRepeat.value = 'none'
  composeAfterCompletionDays.value = '1'
-  composeAfterCompletionUnit.value = 'days'
  composeRepeatError.value = ''
  composeRepeatConfig.value = defaultRepeatConfig()
  composeCalendarOpen.value = false
@@ -247,13 +243,13 @@ 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, afterCompletionUnit: AfterCompletionUnit, recurrence: Recurrence | null) {
+async function saveRepeat(task: Task, value: RepeatOption, config: TaskRepeatConfig, afterCompletionDays: string, 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/${recurrence.id}`, { method: 'DELETE' })
    return null
  }
-  const recurrencePayload = buildTaskRecurrencePayload(value, { afterCompletionDays, afterCompletionUnit, repeatConfig: config })
+  const recurrencePayload = buildTaskRecurrencePayload(value, { afterCompletionDays, repeatConfig: config })
  if (recurrence) {
    return await api(`/recurrences/${recurrence.id}`, { method: 'PATCH', body: JSON.stringify(recurrencePayload) }) as Recurrence
  }
@@ -267,7 +263,6 @@ 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/${task.id}/recurrence`) as Recurrence | null
@@ -276,7 +271,6 @@ async function loadTaskRecurrence(task: Task) {
    const parsed = parseTaskRecurrence(recurrence)
    selectedTaskRepeat.value = parsed.option
    selectedAfterCompletionDays.value = String(parsed.afterCompletionDays)
-    selectedAfterCompletionUnit.value = parsed.afterCompletionUnit
    selectedRepeatConfig.value = recurrence?.rrule ? parseTaskRrule(recurrence.rrule) : defaultRepeatConfig()
  } catch (reason) {
    if (selectionIsCurrent()) fail(reason)
@@ -299,7 +293,7 @@ async function submitTaskCompose() {
  const targetListId = composeListId.value
  creatingTask.value = true
  try {
-    const recurrencePayload = buildTaskRecurrencePayload(composeRepeat.value, { afterCompletionDays: composeAfterCompletionDays.value, afterCompletionUnit: composeAfterCompletionUnit.value, repeatConfig: composeRepeatConfig.value })
+    const recurrencePayload = buildTaskRecurrencePayload(composeRepeat.value, { afterCompletionDays: composeAfterCompletionDays.value, repeatConfig: composeRepeatConfig.value })
    const dueValue = composeDueAt.value ? `${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(
@@ -396,7 +390,7 @@ 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 === 'calendar') return '日历'
  if (activeView.value === 'settings') return '设置与数据'
  return lists.value.find((item) => item.id === activeList.value)?.name || '收集箱'
 })
@@ -725,7 +719,7 @@ async function loadTrashPage() {
 async function loadTrash() {
  loading.value = true
  error.value = ''
-  const committed = await runLatestRequest('trash', loadTrashPage, {
+  return await runLatestRequest('trash', loadTrashPage, {
    success: (data) => {
      trash.value = data.items ?? []
      totalTasks.value = data.total ?? trash.value.length
@@ -733,11 +727,6 @@ 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
@@ -1104,7 +1093,6 @@ 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 {
@@ -1114,7 +1102,7 @@ async function saveSelectedTaskChanges() {
      selectedTaskRecurrence.value = null
      selectedTaskRepeat.value = 'none'
    } else {
-      const updatedRecurrence = await saveRepeat(taskSaved, repeatValue, repeatConfig, afterCompletionDays, afterCompletionUnit, recurrence)
+      const updatedRecurrence = await saveRepeat(taskSaved, repeatValue, repeatConfig, afterCompletionDays, recurrence)
      if (recurrenceLoadToken !== selectionToken || selectedTask.value?.id !== taskId) return
      selectedTaskRecurrence.value = updatedRecurrence
    }
@@ -1288,7 +1276,8 @@ async function renameEntity(kind: 'folders' | 'lists', item: FolderItem | TaskLi
 }
 async function deleteEntity(kind: 'folders' | 'lists', item: FolderItem | TaskList) {
  if (kind === 'lists') {
-    if (!(await confirmAction(`归档清单「${item.name}」？`, '任务会保留，可从“已归档”恢复'))) return
+    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' })
@@ -1541,23 +1530,15 @@ function moveListWithinScope(item: TaskList, direction: 'up' | 'down') {
  void persistListMove(item, item.folder_id, move.targetId, move.placement)
  closeSidebarAction()
 }
-async function scrollToTaskPageStart() {
-  await nextTick()
-  taskListElement.value?.scrollIntoView({ block: 'start' })
-}
-async function previousPage() {
+function previousPage() {
  if (page.value <= 1 || loading.value) return
  page.value -= 1
-  if (activeView.value === 'trash') await loadTrash()
-  else if (isTaskView(activeView.value)) await loadAll()
-  await scrollToTaskPageStart()
+  activeView.value === 'trash' ? loadTrash() : isTaskView(activeView.value) ? loadAll() : undefined
 }
-async function nextPage() {
+function nextPage() {
  if (page.value >= totalPages.value || loading.value) return
  page.value += 1
-  if (activeView.value === 'trash') await loadTrash()
-  else if (isTaskView(activeView.value)) await loadAll()
-  await scrollToTaskPageStart()
+  activeView.value === 'trash' ? loadTrash() : isTaskView(activeView.value) ? loadAll() : undefined
 }

 function reconcileDesktopPaneWidths() {
@@ -1634,7 +1615,7 @@ 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>
+        <button :class="{ active: activeView==='calendar' }" @click="switchView('calendar')"><CalendarDays />日历</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">
@@ -1732,8 +1713,10 @@ onUnmounted(() => {
          <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>
        <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">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>
-      <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" ref="taskListElement">
+      <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>
@@ -1745,8 +1728,6 @@ onUnmounted(() => {
        <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>
-      <div v-if="activeView==='tasks' && totalPages > 1" class="list-page-meta" aria-live="polite"><span>第 {{ page }} / {{ totalPages }} 页 · 共 {{ totalTasks }} 项</span></div>
-      <div v-if="totalPages > 1 && (activeView!=='today' || !todaySectionCollapse.tasks)" class="pager"><button class="secondary" :disabled="page<=1 || loading" @click="previousPage">上一页</button><span aria-live="polite">{{page}} / {{totalPages}}</span><button class="secondary" :disabled="page>=totalPages || loading" @click="nextPage">下一页</button></div>
      <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">
@@ -1768,7 +1749,7 @@ 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==='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==='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>
@@ -1788,7 +1769,7 @@ 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==='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>
+    <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</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>
@@ -1807,7 +1788,7 @@ 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>
+          <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>
          <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>
@@ -5,5 +5,4 @@ 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('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%;')})
 })
@@ -4,57 +4,16 @@ 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 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_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 flush(){ await Promise.resolve(); await new Promise(r=>setTimeout(r,0)); await nextTick() }
 async function mount(fetchMock:ReturnType<typeof vi.fn>){ vi.stubGlobal('fetch',fetchMock); const host=document.createElement('div');document.body.append(host);const notices:string[]=[];const app=createApp(()=>h(CalendarPanel,{onNotice:(v:string)=>notices.push(v)}));app.mount(host);cleanups.push(()=>{app.unmount();host.remove()});await flush();return {host,notices} }
-afterEach(()=>{cleanups.splice(0).forEach(fn=>fn());vi.useRealTimers();vi.unstubAllGlobals();vi.restoreAllMocks()})
+afterEach(()=>{cleanups.splice(0).forEach(fn=>fn());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))
+ it('loads subscriptions and the visible month then filters and opens event detail',async()=>{
  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$/)
@@ -64,49 +23,30 @@ describe('CalendarPanel',()=>{
  expect(document.querySelector('.calendar-event-detail')?.textContent).toContain('产品发布')
  host.querySelector<HTMLInputElement>('input[aria-label="筛选工作"]')!.click();await nextTick()
  expect(host.querySelector('[data-event-id="e1"]')).toBeNull()
-  vi.useRealTimers()
- })
- it('filters duplicate source names by source id',async()=>{
-  vi.useFakeTimers();vi.setSystemTime(new Date(2026,8,20,10))
-  const duplicateSubscriptions=[subscriptions[0],{...subscriptions[0],id:'s2',url:'https://example.com/personal.ics',color:'#334455'}]
-  const duplicateEvents=[events[0],{...events[0],id:'e2',title:'私人日程',source_id:'s2',color:'#334455'}]
-  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:duplicateEvents,sources:[]}:duplicateSubscriptions)))
-  const {host}=await mount(fetchMock)
-  host.querySelector<HTMLButtonElement>('[aria-label="下一周"]')!.click();await flush()
-  host.querySelector<HTMLButtonElement>('[data-day="2026-09-22"]')!.click();await nextTick()
-  host.querySelectorAll<HTMLInputElement>('input[aria-label="筛选工作"]')[0].click();await nextTick()
-  expect(host.querySelector('[data-event-id="e1"]')).toBeNull()
-  expect(host.querySelector('[data-event-id="e2"]')).not.toBeNull()
-  vi.useRealTimers()
 })
 it('groups UTC events by the browser-local calendar day',async()=>{
-  vi.useFakeTimers();vi.setSystemTime(new Date(2026,8,20,10))
  const boundary=[{...events[0],id:'boundary',starts_at:'2026-09-21T23:30:00Z',ends_at:'2026-09-22T00:30:00Z'}]
  const fetchMock=vi.fn((url:string)=>Promise.resolve(json(url.includes('calendar-events')?{events:boundary,sources:[]}:subscriptions)))
  const {host}=await mount(fetchMock)
-  const boundaryDay=new Date(boundary[0].starts_at)
-  if(!host.querySelector(`[data-day="${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()
+  expect(host.querySelector('.calendar-agenda h2')?.textContent).toBe(expected)
 })
- it('keeps the newest week response when requests finish out of order',async()=>{
+ it('keeps the newest month response when requests finish out of order',async()=>{
  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()
+  host.querySelector<HTMLButtonElement>('[aria-label="下个月"]')!.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')
+  pending[1].resolve(json({events:[{...events[0],id:'new',title:'新月份'}],sources:[]}));await flush()
+  pending[0].resolve(json({events:[{...events[0],id:'old',title:'旧月份'}],sources:[]}));await flush()
+  expect(host.textContent).toContain('新月份')
+  expect(host.textContent).not.toContain('旧月份')
 })
- it('supports week navigation and today',async()=>{
+ it('supports month 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="下个月"]')!.click();await flush()
  host.querySelector<HTMLButtonElement>('[aria-label="回到今天"]')!.click();await flush()
  expect(fetchMock.mock.calls.length).toBeGreaterThanOrEqual(before+2)
 })
@@ -7,34 +7,27 @@ 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 CalendarEvent = { id:string; title:string; starts_at:string; ends_at:string; all_day:boolean; 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 emit=defineEmits<{notice:[message:string]}>()
 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 month=ref(new Date(new Date().getFullYear(),new Date().getMonth(),1)),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 range=computed(()=>{const start=new Date(month.value.getFullYear(),month.value.getMonth(),1);const end=new Date(month.value.getFullYear(),month.value.getMonth()+1,1);return{start:start.toISOString(),end:end.toISOString()}})
+const monthLabel=computed(()=>new Intl.DateTimeFormat('zh-CN',{year:'numeric',month:'long'}).format(month.value))
 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 sourceId=(event:CalendarEvent)=>subscriptions.value.find(item=>item.name===event.source_name)?.id??''
+const visibleEvents=computed(()=>events.value.filter(event=>!hiddenSources.value.has(sourceId(event))).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 groupedEvents=computed(()=>{const groups=new Map<string,CalendarEvent[]>();for(const event of visibleEvents.value){const day=localDayKey(eventStart(event));groups.set(day,[...(groups.get(day)??[]),event])}return [...groups].map(([day,items])=>({day,items}))})
 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'
@@ -43,9 +36,8 @@ function displayTime(event:CalendarEvent){if(event.all_day)return'全天';const
 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())}
+async function moveMonth(offset:number){month.value=new Date(month.value.getFullYear(),month.value.getMonth()+offset,1);await loadEvents().catch(reason=>error.value=reason instanceof Error?reason.message:'事件载入失败')}
+async function today(){const now=new Date();month.value=new Date(now.getFullYear(),now.getMonth(),1);await loadEvents().catch(reason=>error.value=reason instanceof Error?reason.message:'事件载入失败')}
 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}
@@ -59,13 +51,12 @@ onMounted(()=>void load())

 <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>
+ <header class="calendar-heading"><div><h1>日历</h1><p>{{visibleEvents.length}} 个日程 · {{subscriptions.length}} 个来源</p></div><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)?`，${dayEventCount(day)}个日程`:'，无日程'}`" :aria-pressed="key(day)===selectedDayKey" @click="selectDay(day)"><small>{{weekDayLabel(day)}}</small><b>{{day.getDate()}}</b><i v-if="dayEventCount(day)" aria-hidden="true">{{dayEventCount(day)}}</i></button></div>
+ <div class="calendar-toolbar"><button aria-label="上个月" @click="moveMonth(-1)"><ChevronLeft/></button><button class="calendar-today" aria-label="回到今天" @click="today">今天</button><strong>{{monthLabel}}</strong><button aria-label="下个月" @click="moveMonth(1)"><ChevronRight/></button></div>
 <div v-if="subscriptions.length" class="calendar-filters" aria-label="筛选日历源"><label v-for="source in subscriptions" :key="source.id"><input type="checkbox" :aria-label="`筛选${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>
+ <div v-if="groupedEvents.length" class="calendar-agenda"><section v-for="group in groupedEvents" :key="group.day"><h2>{{displayDay(group.day)}}</h2><button v-for="event in group.items" :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>这个月还没有日程</b><span>{{subscriptions.length?'可以切换月份或检查来源筛选':'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)" variant="detail" panel-class="calendar-event-detail" title-id="calendar-event-title" initial-focus="button[aria-label='关闭日程详情']" @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"><dl><div><dt>时间</dt><dd>{{displayDay(localDayKey(eventStart(selected)))}} {{displayTime(selected)}}<template v-if="eventEnd(selected) && !selected.all_day"> – {{displayTime({...selected,starts_at:eventEnd(selected)})}}</template></dd></div><div><dt>来源</dt><dd><i :style="{background:eventColor(selected)}"/>{{eventSource(selected)}}</dd></div><div v-if="selected.location"><dt>地点</dt><dd>{{selected.location}}</dd></div></dl><section v-if="selected.description"><h4>备注</h4><p>{{selected.description}}</p></section></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>
@@ -75,14 +75,12 @@ 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 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 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 scheduled recurrence payloads separately from completion triggers', () => {
@@ -172,16 +172,15 @@ export function parseTaskRrule(rrule = ''): TaskRepeatConfig {
 }

 export type TaskRepeatOption = 'none' | 'daily' | 'weekly' | 'monthly' | 'yearly' | 'after_completion' | 'custom'
-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 type TaskRecurrenceRecord = { rrule?: string | null; trigger_mode?: 'scheduled' | 'after_completion'; after_completion_days?: number | null }

-export function buildTaskRecurrencePayload(option: TaskRepeatOption, values: { afterCompletionDays: string | number; afterCompletionUnit?: AfterCompletionUnit; repeatConfig?: TaskRepeatConfig }) {
+export function buildTaskRecurrencePayload(option: TaskRepeatOption, values: { afterCompletionDays: string | number; repeatConfig?: TaskRepeatConfig }) {
  if (option === 'none') return {}
  if (option === 'after_completion') {
    const raw = String(values.afterCompletionDays).trim()
    const days = Number(raw)
-    if (!/^\d+$/.test(raw) || !Number.isInteger(days) || days < 1 || days > 3650) throw new Error('请输入 1 到 3650 的整数')
-    return { trigger_mode: 'after_completion' as const, after_completion_days: days, after_completion_unit: values.afterCompletionUnit ?? 'days' }
+    if (!/^\d+$/.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 }
  }
  const rrule = option === 'custom'
    ? buildTaskRrule(values.repeatConfig ?? { frequency: 'daily', interval: 1, endMode: 'never' })
@@ -190,13 +189,13 @@ export function buildTaskRecurrencePayload(option: TaskRepeatOption, values: { a
 }

 export function parseTaskRecurrence(recurrence?: TaskRecurrenceRecord | null) {
-  if (!recurrence) return { option: 'none' as TaskRepeatOption, afterCompletionDays: 1, afterCompletionUnit: 'days' as AfterCompletionUnit }
+  if (!recurrence) return { option: 'none' as TaskRepeatOption, afterCompletionDays: 1 }
  if (recurrence.trigger_mode === 'after_completion') {
-    return { option: 'after_completion' as TaskRepeatOption, afterCompletionDays: recurrence.after_completion_days ?? 1, afterCompletionUnit: recurrence.after_completion_unit ?? 'days' as AfterCompletionUnit }
+    return { option: 'after_completion' as TaskRepeatOption, afterCompletionDays: recurrence.after_completion_days ?? 1 }
  }
  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, afterCompletionUnit: 'days' as AfterCompletionUnit }
+  return { option: (simple ? parsed.frequency : 'custom') as TaskRepeatOption, afterCompletionDays: 1 }
 }

 export function defaultTaskDueAt(now = new Date()) {
@@ -134,7 +134,7 @@ main.list-main>.mvp-view>.habit-archive-section{border-top:1px solid #e8e0d5}
 .list-section-heading{width:min(100%,630px);min-height:44px;margin:0 auto;display:flex;align-items:center;border-bottom:1px solid #e8e0d5}
 .list-section-title{font-size:13px;font-weight:700}.list-section-count{margin-left:7px;font-size:12px;font-weight:400;color:var(--muted)}
 .list-section-action{min-height:44px;margin-left:auto;padding:0;border:0;background:transparent;color:var(--accent);font-size:12px;font-weight:650}
-.list-page-meta{min-height:36px;margin-top:10px;display:flex;align-items:center;justify-content:flex-end;gap:10px;color:var(--muted);font-size:12px}
+.list-page-meta{min-height:36px;display:flex;align-items:center;justify-content:flex-end;gap:10px;color:var(--muted);font-size:12px}
@media(min-width:1440px){main.list-main>.list-page-context,main.list-main>.list-section-heading,main.list-main>.task-list,main.list-main>.list-page-meta,main.list-main>.pager,main.list-main>.mvp-view{width:min(100%,900px)}}
@media(min-width:721px) and (max-width:1439px){main.list-main>.list-page-context,main.list-main>.list-section-heading,main.list-main>.task-list,main.list-main>.list-page-meta,main.list-main>.pager,main.list-main>.mvp-view{width:min(100%,630px)}}
@media(max-width:720px){main.list-main{padding-left:29px;padding-right:29px}main.list-main>.list-page-context,main.list-main>.list-section-heading,main.list-main>.task-list,main.list-main>.list-page-meta,main.list-main>.pager,main.list-main>.mvp-view{width:100%}.list-page-title{font-size:24px}}
@@ -122,7 +122,7 @@ describe('mobile navigation styles', () => {
    expect(app).not.toContain('aria-controls="mobile-more-menu"')
    expect(app).not.toContain('<Ellipsis/><span>更多</span>')
    expect(app).toContain("<StickyNote/><span>备忘录</span>")
-    expect(app).toContain("<CalendarDays/><span>日历订阅</span>")
+    expect(app).toContain("<CalendarDays/><span>日历</span>")
    expect(app).not.toContain("@click=\"switchView('settings')\"><Settings/><span>设置</span>")
  })

@@ -849,10 +849,7 @@ 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("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(loadBlock).toContain('return await runLatestRequest')
    expect(mutationBlock).toContain('await taskMutationReconciler.run(')
    expect(mutationBlock).toContain('{ affectsTrash: true, affectsTaskView }')
    expect(mutationBlock).not.toContain('performTrashMutation(')
@@ -1373,13 +1370,10 @@ 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('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('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('buildTaskRecurrencePayload(composeRepeat.value')
-    expect(app).toContain('buildTaskRecurrencePayload(value, { afterCompletionDays, afterCompletionUnit, repeatConfig: config })')
+    expect(app).toContain('buildTaskRecurrencePayload(value, { afterCompletionDays, 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',")
@@ -1394,7 +1388,7 @@ 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, afterCompletionUnit, recurrence)')
+    expect(saveBlock).toContain('await saveRepeat(taskSaved, repeatValue, repeatConfig, afterCompletionDays, recurrence)')
    const dueRemovalBlock = saveBlock.slice(saveBlock.indexOf('if (!taskSaved.due_at) {'), saveBlock.indexOf('} else {'))
    expect(dueRemovalBlock).not.toContain('saveRepeat(')
    expect(saveBlock).toContain("selectedRepeatError.value = ''")
@@ -1573,9 +1567,6 @@ describe('sidebar information hierarchy', () => {
    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 ${sidebarActionFolderListCount} 个清单会移到“我的清单”` : '任务会保留，可从“已归档”恢复'")
-    const deleteEntityBlock = app.slice(app.indexOf('async function deleteEntity'), app.indexOf('async function loadArchivedLists'))
-    expect(deleteEntityBlock).toContain("confirmAction(`归档清单「${item.name}」？`, '任务会保留，可从“已归档”恢复')")
-    expect(deleteEntityBlock).not.toContain("askText(`归档清单")
    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')
@@ -81,14 +81,6 @@ describe('approved five-detail polish', () => {
    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\"")
-    const taskListEnd = app.indexOf('</section>', app.indexOf('class=\"task-list plain-list\"'))
-    expect(app.indexOf('class=\"list-page-meta\"')).toBeGreaterThan(taskListEnd)
-    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).toContain('class="list-page-meta" aria-live="polite"')
-    expect(app).toContain('<span aria-live="polite">{{page}} / {{totalPages}}</span>')
    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"')
@@ -1,29 +0,0 @@
-"""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")
@@ -1,52 +0,0 @@
-"""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")
@@ -16,8 +16,6 @@ dependencies = [
  "structlog>=25,<26",
  "lunar-python>=1.2,<2",
  "httpx>=0.28,<1",
-  "icalendar>=6,<7",
-  "python-dateutil>=2.9,<3",
 ]

 [dependency-groups]
@@ -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, "days", user
+        gap_task, datetime(2026, 3, 7, 15, tzinfo=UTC), 1, 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, "days", user
+        fold_task, datetime(2026, 10, 31, 15, tzinfo=UTC), 1, user
    )
    assert fold_due == datetime(2026, 11, 1, 5, 30, tzinfo=UTC)  # first 01:30, fold=0

@@ -89,30 +89,6 @@ 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)

@@ -129,7 +105,6 @@ 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,
    }

@@ -147,8 +122,6 @@ 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}
@@ -200,36 +200,6 @@ 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"])
@@ -1,60 +0,0 @@
-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)
@@ -1,236 +0,0 @@
-import socket
-from datetime import UTC, datetime
-
-import pytest
-from fastapi import HTTPException
-
-from backend.calendar import (
-    FetchResult,
-    parse_ics_events,
-    validate_calendar_url,
-)
-
-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
@@ -277,10 +277,8 @@ 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" },
@@ -303,10 +301,8 @@ 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" },
@@ -478,19 +474,6 @@ 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"
@@ -759,18 +742,6 @@ 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"
@@ -860,15 +831,6 @@ 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"
@@ -952,15 +914,6 @@ 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"