Ignore local Codex runtime state

[likekangen]

Summary

• Ignore local Codex/OpenAI CLI runtime state under .codex/
• Keep the tracked project config .codex/config.toml

Validation

• python -m unittest — PASS, 52 tests
• python scripts/check_shareable_repo.py --include-untracked — PASS
• python scripts/check_tracked_sensitive_names.py — PASS
• git diff --check — PASS

Notes

This prevents local runtime files such as sessions, logs, SQLite state, temp plugin cache, and installation IDs from appearing as addable files while preserving the project-level Codex config.

[likekangen]

Maintainer note: this PR is ready to merge from my side.

• Mergeable: yes
• Scope: .gitignore only
• Purpose: ignore local .codex/ runtime state while preserving tracked .codex/config.toml
• Local validation passed earlier:
  • python -m unittest — PASS, 52 tests
  • scripts/check_shareable_repo.py --include-untracked — PASS
  • scripts/check_tracked_sensitive_names.py — PASS
  • git diff --check — PASS

I attempted to merge, but the likekangen account does not have repository merge permission, so a maintainer needs to merge it.

[Ingar30]

Incorporated in #8, now merged into main: local .codex runtime state is ignored while .codex/config.toml remains tracked. Thank you for the repository-safety improvement.