Development record

The brief surface chapter .abcd/development/brief/04-surfaces/05-intent.md says both the press-release intent and the frozen PRD are immutable input artefacts post-promotion (line 489), but no shipped check freezes an intent at planning: the planning interview edits a planned intent's record (internal/surface/cli/intent_interview.go:121 admits drafts and planned), and the hold, target, edge, link, reclassify, plan and ready sub-verbs write its frontmatter, scope-condition identities or grounds (internal/core/intent/hold.go, target.go, edge.go, reclassify.go, grounds.go, lifecycle.go Plan and Link).