- Add tests for OLLAMA_AGENT_DISABLE_WEBSEARCH/BASH env vars
- Add tests for ErrWebSearchAuthRequired error type
- Add tests for isLocalModel, isLocalServer, truncateToolOutputForLocalModel
- Add Ctrl+O toggle to expand/collapse tool output inline
- Show tools available in grey text at startup
- Add interactive signin flow when web search returns 401:
prompts user, shows signin URL, polls until auth completes
- Truncate tool output for local models to prevent context overflow
- Update help text with Ctrl+O keyboard shortcut