compound-loop v0.7.1

Added

• Documented the cross-skill behavioral mandate gap (a mandate in skill A for behavior skill B performs is dead prose when B's entry path doesn't read A) and the validator harness mutation-gap technique as reusable solutions.

Fixed

• Planning step 1 now specifies how to document a plan skip: attest all four conditions, then hand off; in release-loop context, write to progress.md Log. Aligns the release-loop Plan phase gate with planning's actual Exit condition.
• Fixed Plan: → plan: casing at planning step 18 to match progress-schema.md (P3 carry-forward closed).