feat: refactor service organization and update imports

- Introduced a new structure for services in `src/services/` to improve organization by domain, including core, analytics, data management, integrations, and task management.
- Moved relevant files to their new locations and updated all internal and external imports accordingly.
- Updated `TODO.md` to reflect the new service organization and outlined phases for further refactoring.

scripts/reset-database.ts

@@ -1,4 +1,4 @@
-import { prisma } from '../src/services/database';
+import { prisma } from '../src/services/core/database';
 
 /**
  * Script pour reset la base de données et supprimer les anciennes données