feat(api): add personal API tokens and enhance webhook integration UI

- Add ApiToken model with SHA-256 hashed storage and usage tracking
- Create API token CRUD endpoints (POST/GET/DELETE /api/api-tokens/)
- Add Bearer token authentication to require_login decorator
- Exempt Bearer-authenticated requests from CSRF validation
- Add API tokens management page with create/revoke/copy UI
- Enhance webhook integration type with detailed explanation and code snippets
- Add navigation links (desktop + mobile) to API tokens page
- Include 19 tests covering CRUD, auth resolution, and utility functions
- Create migration 024_add_api_tokens

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

app/api/__init__.py

@@ -7,6 +7,7 @@ import logging
 from fastapi import APIRouter
 
 from app.api.admin_users import router as admin_users_router
+from app.api.api_tokens import router as api_tokens_router
 from app.api.azure import router as azure_router
 from app.api.backup import router as backup_router
 from app.api.billing import router as billing_router
@@ -45,6 +46,7 @@ router = APIRouter()
 
 # Include all the routers
 router.include_router(admin_users_router)
+router.include_router(api_tokens_router)
 router.include_router(user_router)
 router.include_router(backup_router)
 router.include_router(files_router)