Retrofit per the playbook. Resolve both AGENTS.md TODOs with verified
facts (make-target set; db:seed is live at image-build + local dev),
reconcile the AI-provider count (4 files -> 5 registered providers), and
extract the AI subsystem cheat-sheet into docs/guides/ai-subsystem.md,
lazy-loaded via a .claude/rules symlink with an index line in AGENTS.md.
All AGENTS.md commands verified green (tests 177/177, build, tsc, lint).
Keysat