fixes and improvements

backend/src/media_library_viewer_api/routers/settings.py

@@ -9,7 +9,7 @@ import paramiko
 from fastapi import APIRouter, Depends, HTTPException, status
 from pydantic import BaseModel, Field
 
-from media_library_viewer_api.dependencies import get_settings_store
+from media_library_viewer_api.dependencies import get_monitoring_poller, get_settings_store
 from media_library_viewer_api.services.db_maintenance import remove_sqlite_database
 from media_library_viewer_api.services.media_index import MediaIndex
 from media_library_viewer_api.services.settings_store import SettingsStore
@@ -54,7 +54,9 @@ def post_machine(
     machine: MonitoringMachineInput,
     store: SettingsStore = Depends(get_settings_store),
 ) -> dict[str, Any]:
-    return store.upsert_machine(machine.model_dump(exclude_none=True), machine.id)
+    saved = store.upsert_machine(machine.model_dump(exclude_none=True), machine.id)
+    get_monitoring_poller().start()
+    return saved
 
 
 @router.put("/machines/{machine_id}")
@@ -65,7 +67,9 @@ def put_machine(
 ) -> dict[str, Any]:
     if not store.get_machine(machine_id):
         raise HTTPException(status_code=404, detail="Machine not found")
-    return store.upsert_machine(machine.model_dump(exclude_none=True), machine_id)
+    saved = store.upsert_machine(machine.model_dump(exclude_none=True), machine_id)
+    get_monitoring_poller().start()
+    return saved
 
 
 @router.delete("/machines/{machine_id}")