fix(backend): watch times stay in utc for naive telegram dates, webhook outbox survives a database hiccup at start

backend/src/api/webhooks.py

@@ -155,11 +155,14 @@ class Outbox:
         self._wake.set()
 
     async def run(self, pool: asyncpg.Pool) -> None:
-        await webhooks_read.release_stuck(pool)
+        released = False
         async with new_client() as client:
             while True:
                 self._wake.clear()
                 try:
+                    if not released:
+                        await webhooks_read.release_stuck(pool)
+                        released = True
                     await self._drain(pool, client)
                     delay = await self._delay(pool)
                 except Exception: