setup

Install + verify ax (the agent experience layer). Triggers when the user says "install ax", "set up ax", "ax not found", "ax doctor", "is ax running", "fix ax install", "first-time ax setup", or any setup question about the ax CLI / skills / daemon. Walks the install via the install.sh + skills.sh + first ingest, validates with ax doctor, and points the user at ax:retro (experiment loop) and ax:extract-workflow…