feat(trash): exclude trashed rows from notes + knowledge read paths

src/fabledassistant/services/notes.py

@@ -108,7 +108,9 @@ async def create_note(
 async def get_note(user_id: int, note_id: int) -> Note | None:
     async with async_session() as session:
         result = await session.execute(
-            select(Note).where(Note.id == note_id, Note.user_id == user_id)
+            select(Note).where(
+                Note.id == note_id, Note.user_id == user_id, Note.deleted_at.is_(None)
+            )
         )
         return result.scalars().first()
 
@@ -135,8 +137,10 @@ async def list_notes(
     offset: int = 0,
 ) -> tuple[list[Note], int]:
     async with async_session() as session:
-        query = select(Note).where(Note.user_id == user_id)
-        count_query = select(func.count(Note.id)).where(Note.user_id == user_id)
+        query = select(Note).where(Note.user_id == user_id, Note.deleted_at.is_(None))
+        count_query = select(func.count(Note.id)).where(
+            Note.user_id == user_id, Note.deleted_at.is_(None)
+        )
 
         # Filter by task vs note
         if is_task is True:
@@ -239,6 +243,7 @@ async def get_note_by_title(user_id: int, title: str) -> Note | None:
             select(Note).where(
                 Note.user_id == user_id,
                 func.lower(Note.title) == func.lower(title.strip()),
+                Note.deleted_at.is_(None),
             ).limit(1)
         )
         return result.scalars().first()
@@ -402,7 +407,9 @@ async def search_notes_for_context(
             pattern = f"%{escaped}%"
             keyword_filters.append(or_(Note.title.ilike(pattern), Note.body.ilike(pattern)))
 
-        query = select(Note).where(Note.user_id == user_id, or_(*keyword_filters))
+        query = select(Note).where(
+            Note.user_id == user_id, or_(*keyword_filters), Note.deleted_at.is_(None)
+        )
         if orphan_only:
             query = query.where(Note.project_id.is_(None))
         elif project_id is not None:
@@ -421,7 +428,9 @@ async def get_notes_by_ids(user_id: int, note_ids: list[int]) -> dict[int, Note]
         return {}
     async with async_session() as session:
         result = await session.execute(
-            select(Note).where(Note.user_id == user_id, Note.id.in_(note_ids))
+            select(Note).where(
+                Note.user_id == user_id, Note.id.in_(note_ids), Note.deleted_at.is_(None)
+            )
         )
         return {n.id: n for n in result.scalars().all()}
 
@@ -444,6 +453,7 @@ async def get_backlinks(user_id: int, note_id: int) -> list[dict]:
             select(Note.id, Note.title, Note.status).where(
                 Note.user_id == user_id,
                 Note.id != note_id,
+                Note.deleted_at.is_(None),
                 or_(Note.body.like(pattern), Note.body.like(pattern_alias)),
             )
         )