- Adds optional `--json` / `-j` flag to CLI commands for scriptable output - Redirects non-JSON logging messages to stderr under JSON mode - Adds test suite for CLI JSON serialization in backend/tests/test_cli.py - Updates documentation in README.md
- Adds optional `--json` / `-j` flag to CLI commands for scriptable output - Redirects non-JSON logging messages to stderr under JSON mode - Adds test suite for CLI JSON serialization in backend/tests/test_cli.py - Updates documentation in README.md