mcp-upgrade-skill-sync-github-sync-are-easily-dropped-under

MCP upgrade:

MCP upgrade: skill sync + GitHub sync are easily dropped under task momentum. After container rebuild succeeds, implementation satisfaction carries past validate→deliver boundary. Rule: After container rebuild, STOP and check mcp-server-development skill Upgrade Workflow steps 17-20 (skill sync, MEMORY.md update, GitHub sync, session-close) before reporting done.