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/capture/insert.h

@@ -1,5 +1,4 @@
 #pragma once
-#include "core/namespaces.h"
 // insert — placement of bank samples into the arrange (M6). REAPER-facing shell:
 // it reads the bank_panel's current selection, resolves each selected sample's
 // file, and drops it into the arrange at the edit cursor via InsertMedia, wrapped
@@ -28,7 +27,7 @@ class ReaSamplerSession;
 // tempo-conform choice) so the two action variants (native-length vs
 // conform-to-tempo) differ only by this struct — no divergent code paths.
 struct InsertRequest {
-    InsertOptions options;  // defaults: current track, no conform, native length
+    capture::InsertOptions options;  // defaults: current track, no conform, native length
 };
 
 // The outcome of an insert action, for the caller to log to the console.