Add comprehensive design for multi-repo code analyzer with Escher loop#3

Jacck wants to merge 3 commits intohttps-deeplearning-ai:mainhttps-deeplearning-ai/ragchatbot-codebase:mainfrom

Jacck:claude/escher-hand-drawing-011CUytBJtf6u7ERKdWu1LcGJacck/ragchatbot-codebase:claude/escher-hand-drawing-011CUytBJtf6u7ERKdWu1LcGCopy head branch name to clipboard