- ContentType, ContentTypeForController, Records and MatchPath on the
registry; the pure MatchPattern for whole-segment placeholder matching
- two types declaring the same Content.Model or Controller stop the boot
- TestContent* cover lookups, optional Records, boot errors, MatchPattern
and MatchPath precedence (first exact, else first inexact)
- docs: Content descriptors in menu-item-types.md, signpost README
- pact.RecordSaved/RecordDeleted/RecordChange, fired as pointers after commit
- pact.ContentDescriptor and request/result types; MenuItemType.Content
- AdminFormSave.Changes carries the owner's changes to extension Save
- cabana.EmitRecordSaved/EmitRecordDeleted; admin save snapshots columns and
translated values and fires RecordSaved through lagoon.AfterCommit
- signpost validates Content and gains ContentTypes, ContentTypeForModel, Describe
