feat: add automatic cluster sync and IPAM discovery with configurable intervals, firewall log file parsing, and enhanced flow prioritization

Add RuntimeSettingsRead/RuntimeSettingsUpdate schemas with auto_node_sync_enabled/auto_node_sync_interval_minutes/auto_ipam_sync_enabled/auto_ipam_sync_interval_minutes/last_node_auto_sync_at/last_ipam_auto_sync_at fields, implement firewall_log_lines_from_files to parse /var/log/pve-firewall.log with max_lines limit and error collection, extend collect_firewall_log

backend/app/workers/worker.py

@@ -1,12 +1,25 @@
-import time
+import asyncio
+
+from app.db.session import SessionLocal
+from app.services.auto_sync import run_due_jobs
+
+
+async def loop() -> None:
+    print("NexaFabric worker started. Auto-sync scheduler is active.", flush=True)
+    while True:
+        try:
+            with SessionLocal() as db:
+                results = await run_due_jobs(db)
+                for result in results:
+                    print(f"auto-sync: {result}", flush=True)
+        except Exception as exc:
+            print(f"auto-sync failed: {exc}", flush=True)
+        await asyncio.sleep(30)
 
 
 def main() -> None:
-    print("NexaFabric worker started. Configure Celery queues for production job execution.", flush=True)
-    while True:
-        time.sleep(30)
+    asyncio.run(loop())
 
 
 if __name__ == "__main__":
     main()
-