chore: add minimal Gemini Code Assist configuration and update CODEOWNERS#70

Draft

nearlyforget wants to merge 3 commits intoUniversal-Commerce-Protocol:mainfrom

nearlyforget:gemini-config

Commits on Mar 29, 2026

chore: add minimal Gemini configuration and assign .gemini ownership to devops team
nearlyforget
committed
chore: relocate .gemini ownership in CODEOWNERS
nearlyforget
committed

Commits on Apr 1, 2026

Update google-adk to 1.28.0 to address security vulnerability
nearlyforget
committed