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_interfaces/requests/connections.ts

@@ -63,6 +63,21 @@ export interface IReq_TestConnection extends plugins.typedrequestInterfaces.impl
   };
 }
 
+export interface IReq_PauseConnection extends plugins.typedrequestInterfaces.implementsTR<
+  plugins.typedrequestInterfaces.ITypedRequest,
+  IReq_PauseConnection
+> {
+  method: 'pauseConnection';
+  request: {
+    identity: data.IIdentity;
+    connectionId: string;
+    paused: boolean;
+  };
+  response: {
+    connection: data.IProviderConnection;
+  };
+}
+
 export interface IReq_DeleteConnection extends plugins.typedrequestInterfaces.implementsTR<
   plugins.typedrequestInterfaces.ITypedRequest,
   IReq_DeleteConnection