feat(quick-261016-nqk): ListExtendRecords and FormRecordTitle admin hooks (G-18.1-4)

pact.ListExtendRecords fills unstored fields of one list page before its
columns are read (WinterCMS listExtendRecords); such columns compile
unsortable and refuse sortable/searchable. pact.FormRecordTitle names a
record; the show, create and update responses send it as meta.title.

modules/pact/capabilities.go

@@ -734,6 +734,17 @@ type ListRowStates interface {
 	ListRowStates(ctx context.Context, db *gorm.DB, records []any) ([][]RowState, error)
 }
 
+// ListExtendRecords optionally completes the records of one admin list page
+// before their columns are read (WinterCMS's listExtendRecords). The framework
+// calls it once per page with the page's records (pointers, in page order) and
+// the list's database handle, so a controller can fill non-persisted fields
+// its columns show with one batched query instead of one per row. A column of
+// such a field names it by its gorm column tag and sets sortable: false. An
+// error fails the list.
+type ListExtendRecords interface {
+	ListExtendRecords(ctx context.Context, db *gorm.DB, records []any) error
+}
+
 // ListRelationColumnMapper maps a source-schema relation column onto the
 // physical column exposed by the related Go model. It supports legacy admin
 // schemas whose public field names no longer match the database schema.
@@ -741,6 +752,16 @@ type ListRelationColumnMapper interface {
 	ListRelationColumn(relation, column string) (string, bool)
 }
 
+// FormRecordTitle optionally names a record on its form and preview screens.
+// The framework calls it whenever it sends a record (the show, create and
+// update responses) with the loaded record and the request's database handle.
+// A non-empty answer is sent as the record envelope's meta.title, which the
+// admin shows instead of the value of the form's first text field. An error
+// fails the request.
+type FormRecordTitle interface {
+	FormRecordTitle(ctx context.Context, db *gorm.DB, record any) (string, error)
+}
+
 // FormExtendQuery optionally narrows admin form record lookup.
 type FormExtendQuery interface {
 	FormExtendQuery(ctx context.Context, db *gorm.DB) *gorm.DB