Add Morning Routine to Admin and TV greeting state

Adds a per-user Morning Routine item list that appears in the TV
dashboard Activities panel during the "Good Morning" countdown
(before the first block starts).

- morning_routine_items table (auto-created on startup)
- CRUD API at /api/morning-routine (auth-required)
- Items included in the public DashboardSnapshot so TV gets them
  without auth
- Morning Routine section in Admin page (same add/edit/delete UX
  as subject options)
- TV Activities column shows routine items when no block is active,
  switches to subject options once a block starts

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/routers/morning_routine.py

@@ -0,0 +1,97 @@
+from fastapi import APIRouter, Depends, HTTPException, status
+from pydantic import BaseModel
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+
+from app.dependencies import get_db, get_current_user
+from app.models.morning_routine import MorningRoutineItem
+from app.models.user import User
+
+router = APIRouter(prefix="/api/morning-routine", tags=["morning-routine"])
+
+
+class MorningRoutineItemOut(BaseModel):
+    id: int
+    text: str
+    order_index: int
+    model_config = {"from_attributes": True}
+
+
+class MorningRoutineItemCreate(BaseModel):
+    text: str
+    order_index: int = 0
+
+
+class MorningRoutineItemUpdate(BaseModel):
+    text: str | None = None
+    order_index: int | None = None
+
+
+@router.get("", response_model=list[MorningRoutineItemOut])
+async def list_items(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    result = await db.execute(
+        select(MorningRoutineItem)
+        .where(MorningRoutineItem.user_id == current_user.id)
+        .order_by(MorningRoutineItem.order_index, MorningRoutineItem.id)
+    )
+    return result.scalars().all()
+
+
+@router.post("", response_model=MorningRoutineItemOut, status_code=status.HTTP_201_CREATED)
+async def create_item(
+    body: MorningRoutineItemCreate,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    item = MorningRoutineItem(user_id=current_user.id, text=body.text, order_index=body.order_index)
+    db.add(item)
+    await db.commit()
+    await db.refresh(item)
+    return item
+
+
+@router.patch("/{item_id}", response_model=MorningRoutineItemOut)
+async def update_item(
+    item_id: int,
+    body: MorningRoutineItemUpdate,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    result = await db.execute(
+        select(MorningRoutineItem).where(
+            MorningRoutineItem.id == item_id,
+            MorningRoutineItem.user_id == current_user.id,
+        )
+    )
+    item = result.scalar_one_or_none()
+    if not item:
+        raise HTTPException(status_code=404, detail="Item not found")
+    if body.text is not None:
+        item.text = body.text
+    if body.order_index is not None:
+        item.order_index = body.order_index
+    await db.commit()
+    await db.refresh(item)
+    return item
+
+
+@router.delete("/{item_id}", status_code=status.HTTP_204_NO_CONTENT)
+async def delete_item(
+    item_id: int,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    result = await db.execute(
+        select(MorningRoutineItem).where(
+            MorningRoutineItem.id == item_id,
+            MorningRoutineItem.user_id == current_user.id,
+        )
+    )
+    item = result.scalar_one_or_none()
+    if not item:
+        raise HTTPException(status_code=404, detail="Item not found")
+    await db.delete(item)
+    await db.commit()