The Story chapter-selection processing subsystem is duplicated across two
namespaces (…SelectionProcessing.Main and .BattleResult), each with its own
ProcessingBase : IProcessing + Parameter. m1_genstub keyed output by bare type
name, so only ONE ProcessingBase.g.cs was emitted (BattleResult), and
m1_baseclauses cross-qualified the Main leaves to BattleResult.ProcessingBase —
making it impossible to give IProcessing its real members (Execute(Main.Parameter)
≠ inherited Execute(BattleResult.Parameter) → CS0535).
Now both ProcessingBase variants are generated via the namespace-aware tooling
(<Type>__<Namespace>.g.cs), baseclauses resolves each leaf to its same-namespace
ProcessingBase, and both IProcessing interfaces carry NextProcessing + Execute.
8 IProcessing CS1061 cleared, no CS0535 introduced.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
