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/reasampler_embed.h

@@ -31,7 +31,6 @@
 // REAPER's messages to/from it and draws with the same LICE idiom as reasampler_editor.
 
 #pragma once
-#include "core/namespaces.h"
 
 #include <cstdint>
 #include <string>
@@ -52,6 +51,10 @@ namespace reasampler::vst {
 
 class ReaSamplerProcessor;
 
+// Real-namespace-home using-declarations (Q-W6: the namespaces.h shim is retired).
+using instrument::map::PerformanceMap;
+using instrument::map::SampleChoice;
+
 // Implements IReaperUIEmbedInterface. Lifetime is OWNED by the processor (the processor
 // holds the sole unique_ptr and hands out AddRef'd references from queryInterface); the
 // back-pointer to the processor is therefore always valid while this lives.