feat(notify): 站内通知补齐完成、到期逾期与知识事件

backend/app/api/tickets.py

@@ -767,11 +767,14 @@ async def delete_link(
 
 
 # -- 通知 ---------------------------------------------------------------
-def _notification_out(n: Notification, item_title: str | None = None) -> dict[str, Any]:
+def _notification_out(
+    n: Notification, item_title: str | None = None, item_kind: str | None = None
+) -> dict[str, Any]:
     return {
         "id": str(n.id),
         "kind": n.kind,
         "item_id": str(n.item_id) if n.item_id else None,
+        "item_kind": item_kind,
         "item_title": item_title,
         "title": n.title,
         "body": n.body,
@@ -813,18 +816,27 @@ async def list_notifications(
     rows = list(rows[:limit])
 
     titles: dict[uuid.UUID, str] = {}
+    kinds: dict[uuid.UUID, str] = {}
     item_ids = [n.item_id for n in rows if n.item_id]
     if item_ids:
-        for item_id, title in (
-            await session.execute(select(Item.id, Item.title).where(Item.id.in_(item_ids)))
+        for item_id, title, kind in (
+            await session.execute(
+                select(Item.id, Item.title, Item.kind).where(Item.id.in_(item_ids))
+            )
         ).all():
             titles[item_id] = title
+            kinds[item_id] = kind
 
     next_cursor = encode_cursor(rows[-1].created_at, rows[-1].id) if has_more and rows else None
     return ok(
         {
             "notifications": [
-                _notification_out(n, titles.get(n.item_id) if n.item_id else None) for n in rows
+                _notification_out(
+                    n,
+                    titles.get(n.item_id) if n.item_id else None,
+                    kinds.get(n.item_id) if n.item_id else None,
+                )
+                for n in rows
             ],
             "next_cursor": next_cursor,
             "has_more": has_more,