Changelog

• d3e9a1f - codex spec - tasks spec
• 9fd5e7f Feat/update model names (#45)
• d194e8e Fix/memory leaks (#46)
• 599a14e docs(tui): explain MouseModeCellMotion + add bundled memory-index skill (#44)
• c107738 feat(codex): add Codex direct-mode client, session, and subagent spawner