G.5:4.4ca - Derived tradition-view result stays derived over one declared palette
When the source is TraditionFront or TraditionArchive, keep its base SoTAPaletteDescription recoverable. State SourceSetFamily; add DerivedViewKind when it changes interpretation or later publication and SourceSetComposition only when several source-set families were actually composed. Cite the derivation’s declared Q, reachability or coverage rule among the DRR/SCR or equivalent basis pins. The view qualifies the source; §4.4b still defines the emitted outcome.