hatch3r-cleanup

# Cleanup — Accumulated Working-State Pass ## Quick Start Dispatch-first: each surface's cleanup lives in the artifact that created the state. This skill inventories everything in one read-only scan, asks ONCE, dispatches confirmed categories to their owning procedures, and directly prunes only the surfaces no other artifact owns (plan files, workspace dirs, telemetry rotation). It spawns no sub-agents — dispatch means running the owning skill's documented procedure or CLI command inline. ``` Task Progress: - [ ] Step 0: Detect ambiguity (P8 B1) - [ ] Step 1: Inventory scan (read-only) - [ ] Step 2: One consolidated ASK - [ ] Step 3: Dispatch owned surfaces - [ ] Step 4: Prune unowned surfaces - [ ] Step 5: Report ``` ## Step 0 — Detect Ambiguity (P8 B1) Before any scan, resolve open questions via the platform-native question tool per `agents/shared/user-question-protocol.md` — default behavior, not exception-driven. Triggers for THIS skill: (a) the invocation names a scope narrower than the full inventory ("clean up the plans") — confirm whether the other categories should be scanned too or skipped; (b) the repo is mid-flight (open PR branch checked out, active handoff present) — confirm cleanup should run now rather than after landing; (c) a category's owner is customized (e.g. `.hatch3r/overrides/` carries a modified learn or board-groom skill) — confirm the override's procedure is the one to dispatch. Additionally, classify as **in-use-until-confirmed** any plan file...