Development record

The brief at .abcd/development/brief/04-surfaces/06-capture.md:394 says: §3 'Ledger structure' presents the issue frontmatter 'per the issue-ledger schema in internal/core/issueschema' as a field-by-field list of what a record may carry (schema_version through resolved_by). The shipped surface differs: internal/core/issueschema/issueschema.go:93 adds "finding_ref" to the Known allow-list (the key the consistency pass stamps on a filed finding so it is not filed twice); the brief's schema block omits it, and no brief chapter names finding_ref at all. (v0.14.2 release crosscheck, undocumented-surface, raised by opus in a05.)