- Add multi‑type union support and tighten JsonSchema handling, plus new error messages for lost connections and refresh cache locks
- Introduce route metadata, Postgres transaction pooler support, and a "without migration data" flag for the dump command; improve type hints and add missing @throws annotations
- Fix multiple bugs: cache deserialization timestamps, timezone‑order independence for between(), dev‑command registration, Postgres whereDate/whereTime crash, and other type‑hint issues