Recognize AppKit binding connectors as explicit unknown connection facts and
report partial semantic coverage rather than silently omitting them. Share
format-aware connector admission across keyed archives and NIBArchive.
Make the keyed archive table own parsed class and superclass facts for names,
array hierarchy traversal, inherited connectors, and class-table projection.
Preserve malformed class evidence and exclude unrelated custom class names.
Validation: 84 focused tests passed, including compiled CLI, filesystem,
MCP summary, and retained views; check:fast and test discovery passed.
Independent source review found no blocker. Production CLI and stdio MCP
replayed a read-only copy of Terminal 2.15's picker NIB: 13 connections with
partial unsupported-type coverage, versus baseline 9 with complete coverage.
Advertised schemas and retained coverage results validated with the SDK/Ajv.
No app, analysis target, or optional deep provider was executed.
Fixes#5590
morluto
14cd78c322