fix(agent99): move dispatch reconciler to signal worker

apps/api/src/workers/signal_worker.py

@@ -622,6 +622,7 @@ async def _main() -> None:
     ansible_candidate_backfill_task: asyncio.Task[Any] | None = None
     backup_restore_legacy_backfill_task: asyncio.Task[Any] | None = None
     security_maintenance_tasks: list[asyncio.Task[Any]] = []
+    agent99_controlled_dispatch_reconciler_task: asyncio.Task[Any] | None = None
     if settings.ENABLE_AWOOOP_ANSIBLE_CANDIDATE_BACKFILL_WORKER:
         from src.jobs.awooop_ansible_candidate_backfill_job import (
             run_awooop_ansible_candidate_backfill_loop,
@@ -686,6 +687,41 @@ async def _main() -> None:
             task_names=[task.get_name() for task in security_maintenance_tasks],
             task_count=len(security_maintenance_tasks),
         )
+
+    # 2026-07-14 Codex v1.4: Agent99 reconciliation has one runtime owner.
+    # The API reserves its single DB connection for requests, so durable
+    # dispatch completion belongs to this standalone worker after the CD-owned
+    # schema migration / optional local bootstrap block above has completed.
+    if (
+        settings.AGENT99_SRE_ALERT_RELAY_URL.strip()
+        and settings.AGENT99_SRE_ALERT_RELAY_TOKEN.strip()
+    ):
+        from src.jobs.agent99_controlled_dispatch_reconciler_job import (
+            run_agent99_controlled_dispatch_reconciler_loop,
+        )
+
+        agent99_controlled_dispatch_reconciler_task = asyncio.create_task(
+            run_agent99_controlled_dispatch_reconciler_loop(),
+            name="run_agent99_controlled_dispatch_reconciler_loop",
+        )
+        logger.info(
+            "signal_worker_agent99_controlled_dispatch_reconciler_started",
+            owner="signal_worker",
+            interval_seconds=15,
+            authenticated_relay_configured=True,
+        )
+    else:
+        logger.warning(
+            "signal_worker_agent99_controlled_dispatch_reconciler_skipped_fail_closed",
+            owner="signal_worker",
+            reason="authenticated_relay_not_configured",
+            relay_url_configured=bool(
+                settings.AGENT99_SRE_ALERT_RELAY_URL.strip()
+            ),
+            relay_token_configured=bool(
+                settings.AGENT99_SRE_ALERT_RELAY_TOKEN.strip()
+            ),
+        )
     # Setup graceful shutdown
     shutdown_event = asyncio.Event()
 
@@ -727,6 +763,12 @@ async def _main() -> None:
         task.cancel()
     if security_maintenance_tasks:
         await asyncio.gather(*security_maintenance_tasks, return_exceptions=True)
+    if agent99_controlled_dispatch_reconciler_task is not None:
+        agent99_controlled_dispatch_reconciler_task.cancel()
+        try:
+            await agent99_controlled_dispatch_reconciler_task
+        except asyncio.CancelledError:
+            pass
     await worker.stop()
     await close_worker_redis_pool()  # 關閉 Worker 專屬連線
     await close_redis_pool()