- read token and field from query parameters - default missing or empty fields to value - expose attribute query and update through GET and PATCH routes - return true only for measurement mode 1 - add query parsing and measurement mode test coverage
- classify and validate measurement tokens in supported formats - query measurement attributes and latest values from PostgreSQL and Redis - add measurement mode support and centralized SQL definitions - register data-object attribute query and update routes - fix logger caller attribution and measurement identifier generation - add tests for token parsing, attribute queries, Redis values, and logging
douxu