feat(trash): daily retention purge scheduler (03:30 UTC) wired into app lifecycle

src/fabledassistant/app.py

@@ -175,6 +175,10 @@ def create_app() -> Quart:
         )
         start_version_pinning_scheduler(asyncio.get_running_loop())
 
+        # Trash retention scheduler (daily expired-trash purge at 03:30 UTC)
+        from fabledassistant.services.trash_scheduler import start_trash_scheduler
+        start_trash_scheduler(asyncio.get_running_loop())
+
         # Diagnostic instrumentation — heartbeat, signal handlers, asyncio
         # exception hook. Cheap (~1 log line/min), high diagnostic value when
         # the app crashes mysteriously. See services/diagnostics.py.
@@ -189,6 +193,8 @@ def create_app() -> Quart:
             stop_version_pinning_scheduler,
         )
         stop_version_pinning_scheduler()
+        from fabledassistant.services.trash_scheduler import stop_trash_scheduler
+        stop_trash_scheduler()
         from fabledassistant.services.diagnostics import stop_diagnostics
         stop_diagnostics()