- Embed files directly in message parts using file:// URL format - Remove dependency on Read tool for multimodal-looker agent - Add inferMimeType helper for proper MIME type detection - Disable read tool in agent tools config (no longer needed) - Upgrade multimodal-looker model to gemini-3-flash - Update all README docs to reflect gemini-3-flash change Fixes #126 🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)