feat: add custom task recurrence options

backend/main.py

@@ -468,7 +468,12 @@ async def create_task(
         )
         if parent is None:
             raise HTTPException(status_code=400, detail="父任务必须是同一清单的顶层任务")
-    data = payload.model_dump()
+    if payload.rrule:
+        if not payload.due_at:
+            raise HTTPException(status_code=422, detail="重复任务需要截止时间")
+        from .mvp import parse_rrule
+        parse_rrule(payload.rrule)
+    data = payload.model_dump(exclude={"rrule"})
     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,
@@ -479,6 +484,8 @@ async def create_task(
     task = Task(user_id=user.id, position=(max_position if max_position is not None else -1) + 1, **data)
     db.add(task)
     await db.flush()
+    if payload.rrule:
+        db.add(RecurrenceTemplate(user_id=user.id, task_id=task.id, rrule=payload.rrule.upper(), starts_at=task.due_at))
     audit(db, user.id, "create", "task", task.id)
     await db.commit()
     await db.refresh(task)

backend/schemas.py

@@ -77,6 +77,7 @@ class TaskCreate(BaseModel):
     priority: int = Field(default=0, ge=0, le=3)
     due_at: datetime | None = None
     parent_id: UUID | None = None
+    rrule: str | None = Field(default=None, min_length=5, max_length=1000)
 
 
 class TaskUpdate(BaseModel):

frontend/src/App.vue

@@ -145,14 +145,15 @@ async function submitTaskCompose() {
   const taskTitle = composeTitle.value.trim()
   if (!taskTitle || !composeListId.value) return
   try {
+    const rrule = composeRepeat.value === 'none' ? null : repeatRrule(composeRepeat.value, composeRepeatConfig.value)
     const task = await api('/tasks', { method: 'POST', body: JSON.stringify({
       title: taskTitle,
       list_id: composeListId.value,
       due_at: fromDateTimeLocal(composeDueAt.value),
       priority: composePriority.value,
       description: composeDescription.value,
+      rrule,
     }) })
-    if (composeRepeat.value !== 'none') await api('/recurrences', { method: 'POST', body: JSON.stringify({ task_id: task.id, rrule: repeatRrule(composeRepeat.value, composeRepeatConfig.value) }) })
     if (isTaskView(activeView.value)) {
       tasks.value.push(task)
       totalTasks.value = nextTotalAfterLocalTaskAdd(totalTasks.value)

frontend/src/style.test.ts

@@ -177,7 +177,7 @@ describe('unified floating add interaction', () => {
     expect(app).toContain('const selectedTaskRepeat = ref')
     expect(app).toContain('重复<select v-model="composeRepeat"')
     expect(app).toContain('重复<select v-model="selectedTaskRepeat"')
-    expect(app).toContain("api('/recurrences'")
+    expect(app).toContain('rrule,')
     expect(app).toContain("api(`/tasks/${task.id}/recurrence`)")
     expect(app).toContain('<option value="custom">自定义…</option>')
     expect(app).toContain('class="repeat-custom-fields"')

tests/test_mvp_backend.py

@@ -29,6 +29,29 @@ def test_bootstrap_returns_navigation_and_current_user(client):
 
 
 
+def test_creating_task_with_recurrence_is_atomic(client):
+    inbox = boot(client)
+    created = client.post(
+        "/api/v1/tasks",
+        json={
+            "title": "隔周复盘",
+            "list_id": inbox["id"],
+            "due_at": "2026-09-07T09:00:00Z",
+            "rrule": "FREQ=WEEKLY;INTERVAL=2;BYDAY=MO,FR",
+        },
+    )
+    assert created.status_code == 201
+    recurrence = client.get(f"/api/v1/tasks/{created.json()['id']}/recurrence").json()
+    assert recurrence["rrule"] == "FREQ=WEEKLY;INTERVAL=2;BYDAY=MO,FR"
+
+    rejected = client.post(
+        "/api/v1/tasks",
+        json={"title": "缺少日期", "list_id": inbox["id"], "rrule": "FREQ=DAILY"},
+    )
+    assert rejected.status_code == 422
+    assert client.get("/api/v1/tasks", params={"q": "缺少日期"}).json()["items"] == []
+
+
 def test_custom_recurrence_rejects_invalid_weekdays_month_days_and_until(client):
     inbox = boot(client)
     task = client.post(