skillpack-harvest — Editorial workflow for lifting host skills into gbrain Convention: see brain-filing-rules.md for file placement rules. This skill writes into gbrain's own tree, not the brain repo's notes. This skill is the inverse of . Scaffold ships skills downstream (gbrain → host). Harvest lifts proven patterns upstream (host → gbrain) so they become references every other client can scaffold. Contract A harvest is "properly done" when: 1. The host skill is mature (used in production, recent routing-eval cases pass). 2. The editorial genericization in Phase 3 has scrubbed every fork-sp…