first-tree-onboarding

One-shot onboarding command for First Tree. Drives a repo or workspace from "no first-tree" all the way to "tree bound, real content drafted, daemon running, agent templates confirmed" — end to end, in one skill invocation. Trigger this skill when the user invokes /first-tree-onboarding, says "onboard this repo to first-tree", "set up first-tree here", "complete first-tree onboarding", or runs first-tree against an…