Release v0.5.0 - Updated `README.rst` integration documentation to reflect the modern `config/hooks.json` format and show how to wrap the startup command with `jq` to prevent unmarshaling failures. - Redirected all warning, error, and state-update messages from `stdout` to `stderr` in `ajourn` to prevent JSON/protobuf unmarshaling failures when invoked by agent hooks. - Updated the environment verification test script `tests/verify_env.sh` to recognize and check `~/.gemini/config/hooks.json` in addition to `~/.gemini/settings.json`.