Development record

The brief at .abcd/development/brief/04-surfaces/19-identity.md:80 says: An unloadable registry is reported as a warn-tier finding rather than as drift, so the symptom reads as a broken check rather than as a missing tagline. The shipped surface differs: internal/core/repolint/rule_positioning.go:54 reports an unloadable registry through targetRefusal (internal/core/repolint/repolint.go:179), which is SeverityError ('`abcd lint identity` refuses the same registry, so this is an error'), not a warn-tier finding; and `abcd lint identity` refuses such a registry outright. (v0.14.2 release crosscheck, false-claim, raised by opus in a14.)