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/data/actionlog.ts

@@ -0,0 +1,13 @@
+export type TActionType = 'create' | 'update' | 'delete' | 'pause' | 'resume' | 'test' | 'scan';
+export type TActionEntity = 'connection' | 'secret' | 'pipeline';
+
+export interface IActionLogEntry {
+  id: string;
+  timestamp: number;
+  actionType: TActionType;
+  entityType: TActionEntity;
+  entityId: string;
+  entityName: string;
+  details: string;
+  username: string;
+}