feat: complete Phase 5 of service refactoring

- Marked tasks in `TODO.md` as completed for moving TFS and Jira services to the `integrations` directory and correcting imports across the codebase.
- Updated imports in various action files, API routes, and components to reflect the new structure.
- Removed obsolete `jira-advanced-filters.ts`, `jira-analytics.ts`, `jira-analytics-cache.ts`, `jira-anomaly-detection.ts`, `jira-scheduler.ts`, `jira.ts`, and `tfs.ts` files to streamline the codebase.
- Added new tasks in `TODO.md` for future cleaning and organization of service imports.

src/clients/jira-client.ts

@@ -3,7 +3,7 @@
  */
 
 import { HttpClient } from './base/http-client';
-import { JiraSyncResult } from '@/services/jira';
+import { JiraSyncResult } from '@/services/integrations/jira/jira';
 
 export interface JiraConnectionStatus {
   connected: boolean;