feat(monitoring): T23 - Surveillance automatique des libraries

- Ajout scheduler dans l'indexer (vérifie toutes les minutes)
- Migration 0004: colonnes monitor_enabled, scan_mode, next_scan_at
- API: GET /libraries avec champs monitoring
- API: PATCH /libraries/:id/monitoring pour configuration
- Composant MonitoringForm (client) avec checkbox et select
- Badge Auto/Manual avec couleurs différentes
- Affichage temps restant avant prochain scan
- Proxy route /api/libraries/:id/monitoring

Le scheduler crée automatiquement des jobs quand next_scan_at <= NOW()

apps/api/src/openapi.rs

@@ -21,6 +21,7 @@ use utoipa::OpenApi;
         crate::libraries::create_library,
         crate::libraries::delete_library,
         crate::libraries::scan_library,
+        crate::libraries::update_monitoring,
         crate::tokens::list_tokens,
         crate::tokens::create_token,
         crate::tokens::revoke_token,
@@ -43,6 +44,7 @@ use utoipa::OpenApi;
             crate::index_jobs::FolderItem,
             crate::libraries::LibraryResponse,
             crate::libraries::CreateLibraryRequest,
+            crate::libraries::UpdateMonitoringRequest,
             crate::tokens::CreateTokenRequest,
             crate::tokens::TokenResponse,
             crate::tokens::CreatedTokenResponse,