Add web auth, infinite-scroll, agent admission and review fixes across agent/server/web

server/monlet_server/services/notifier_worker.py

@@ -208,9 +208,16 @@ async def tick(
         await session.commit()
     if not rows:
         return 0
-    await asyncio.gather(
-        *(_process_row(sm, registry, r, settings.notifier_max_attempts) for r in rows)
-    )
+
+    # Bound concurrent DB sessions: each _process_row opens its own session, so an
+    # unbounded gather over a large batch can exhaust the connection pool.
+    sem = asyncio.Semaphore(settings.notifier_concurrency)
+
+    async def _guarded(row: dict) -> None:
+        async with sem:
+            await _process_row(sm, registry, row, settings.notifier_max_attempts)
+
+    await asyncio.gather(*(_guarded(r) for r in rows))
     return len(rows)