{"message":"Union CBA Document Processing API","version":"2.0.0","status":"running","architecture":"Sliding Window with Claude Sonnet 4.5","quick_start":{"1":"Register: POST /auth/signup","2":"Confirm email: POST /auth/confirm-signup","3":"Sign in: POST /auth/signin","4":"Authorize in Swagger: Click 'Authorize' button","5":"Upload PDF: POST /api/upload/","6":"Check status: GET /api/files/status/{file_id}","7":"Download result: GET /api/files/download/{file_id}"},"documentation":{"swagger_ui":"/docs","redoc":"/redoc"}}