- Changed AI endpoints from /admin/db/settings/ai to /admin/ai/settings
- Changed AI prompt endpoints from /admin/db/settings/prompt to /admin/ai/settings/prompt
- Changed AI keys endpoint from /admin/db/settings/ai-keys to /admin/ai/settings/keys
- Changed AI test endpoint from /admin/db/settings/test-ai-key to /admin/ai/settings/test-key
- DB endpoints remain unchanged under /admin/db/...
- Frontend tests: 291/291 passing
- Backend tests: 41/41 passing