feat(core): add table actions (edit, pause, delete confirmation) and global action log

- Add Edit and Pause/Resume actions to connections table
- Add delete confirmation modal to secrets table
- Add 'paused' status to connections with full backend support
- Skip paused connections in health checks and secrets scanning
- Add global ActionLog service with filesystem persistence
- Instrument all mutation handlers (connections, secrets, pipelines) with action logging
- Add Action Log view with entity type filtering to dashboard

ts/classes/gitopsapp.ts

@@ -1,6 +1,7 @@
 import * as plugins from '../plugins.ts';
 import { logger } from '../logging.ts';
 import { ConnectionManager } from './connectionmanager.ts';
+import { ActionLog } from './actionlog.ts';
 import { OpsServer } from '../opsserver/index.ts';
 import { StorageManager } from '../storage/index.ts';
 import { CacheDb, CacheCleaner, CachedProject, CachedSecret, SecretsScanService } from '../cache/index.ts';
@@ -13,6 +14,7 @@ export class GitopsApp {
   public storageManager: StorageManager;
   public smartSecret: plugins.smartsecret.SmartSecret;
   public connectionManager: ConnectionManager;
+  public actionLog: ActionLog;
   public opsServer: OpsServer;
   public cacheDb: CacheDb;
   public cacheCleaner: CacheCleaner;
@@ -27,6 +29,7 @@ export class GitopsApp {
     });
     this.smartSecret = new plugins.smartsecret.SmartSecret({ service: 'gitops' });
     this.connectionManager = new ConnectionManager(this.storageManager, this.smartSecret);
+    this.actionLog = new ActionLog(this.storageManager);
 
     this.cacheDb = CacheDb.getInstance({
       storagePath: paths.defaultTsmDbPath,