Q-W6: registration table (OCP) in main.cpp; bank verbs -> shell/bank_ops(Session&); persist.h + wav_trim + namespaces.h shims deleted; 61/61

capture.h realtime seam split to capture_realtime_shell.h; GetProjExtState grow-loop rehomed to core/wire/ext_state_read; stale persist.cpp/bank_panel.cpp comment refs fixed; CLAUDE.md persist/bank_book/actions bullets updated. Command-id suffixes, display phrases, and undo labels byte-identical.

src/shell/instrument/processor_state.cpp

@@ -24,6 +24,7 @@ using namespace Steinberg::Vst;
 namespace reasampler::vst {
 
 using namespace instrument::map;  // the codec + resolution vocabulary this TU marshals
+using instrument::engine::masterGainMaxLinear;  // FB1 taper ceiling (Q-W6: shim retired)
 
 tresult PLUGIN_API ReaSamplerProcessor::setState(IBStream* state) {
     if (!state) return kResultFalse;