[Feature Request] Autocomplete UX: truncated file paths and mixed MCP resources in results

Bug Description
autocomplete UX issues:

1. File paths are truncated with no way to see full path - impossible to distinguish between similarly named files in different directories

1. MCP server resources (e.g., Figma docs) appear mixed with local files, cluttering results when searching for project files

Requests:

• Show full paths or add hover tooltip with full path
• Add setting to prioritize local files over MCP resources
• Or allow hiding MCP resources from @ autocomplete

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.5
• Feedback ID: e2439758-e995-4cfc-b398-b64cb5885e7b