Merge pull request #1 from Ark-Sena/desktop

Support list-based message content format

Remove duplicate Google ToS reference from Contributing section

Remove CLI flag example - keep config simple

Remove default model from config - users can set via CLI flag

Simplify configuration - combine provider and model setup into single step

Fix model configuration - use config file instead of non-existent config command

Fix OpenCode config file path to opencode.json

Update project name from GMNA to Gemini Web Proxy

Initial release: GMNA Web Proxy for OpenCode