Onboarding doc for fresh agent sessions: stack, commands, layout,
conventions, and an Always/Never list of gotchas hit during the AI
overhaul. Current state section tracks the 1.1.0:7 checkpoint.
ROADMAP.md holds the longer-term backlog. CLAUDE.md symlinks AGENTS.md
so Claude Code loads it. Secrets kept out — private registry/file-host
URLs and creds referenced by file location, not value.