- Add local/custom mode switching for API configuration
- Custom mode patches ~/.claude/settings.json env section before spawn
- Strip ANTHROPIC_* from child process env for clean config isolation
- Add spawn-time model name validation against MODEL_MAP
- Move template config fields to modal dialog for cleaner UI
- Show warning when custom templates may overwrite local API config
- Add model config UI in settings panel (local/custom mode)
- local mode: read model names from ~/.claude.json env fields
- custom mode: named templates with API key, base URL, model names
- Fix /compact duplicate message via reason field in pendingCompactRetries
- Add CLAUDE.md with architecture notes
