AGENTS.override.md for Local Developer Overrides

Codex CLI walks from the project root down to the current working directory checking for AGENTS.override.md alongside AGENTS.md at every level for uncommitted, machine-specific, or personal developer overrides. Never commit local override files—add AGENTS.override.md to .gitignore.

File: ./AGENTS.override.md (Must be in .gitignore)

- Use local test database URL postgresql://localhost:5433/dev_override when running integration tests on this machine.