d7326e1eeb
Add GitHub Copilot as a fallback provider option in the installer. Native providers (Claude/ChatGPT/Gemini) have priority over Copilot. - Add hasCopilot field to InstallConfig and DetectedConfig types - Add --copilot flag support for both TUI and non-TUI modes - Add Copilot prompt in interactive installer (after Gemini) - Update model selection logic to use Copilot fallback when native providers unavailable - Update configuration summary to display Copilot status Addresses #762 Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>