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/actions/instrument_drop_win.cpp

@@ -1,4 +1,3 @@
-#include "core/namespaces.h"
 // instrument_drop_win — the REAPER shell for S17 drop-and-load. See instrument_drop_win.h.
 //
 // Compiled into the reaper_reasampler MODULE. Includes reaper_plugin_functions.h WITHOUT
@@ -30,6 +29,10 @@
 
 namespace reasampler {
 
+// Real-namespace-home using-declarations (Q-W6: the namespaces.h shim is retired).
+using version::vstPluginName;
+using wire::infoNamesFxHotspot;
+
 namespace {
 
 // Write `bytes` to a fresh uniquely-named .vstpreset in the OS temp dir and return its path;
@@ -43,7 +46,7 @@ namespace {
 //
 // Non-throwing: every std::filesystem call uses the error_code overload. The whole body is
 // wrapped in try/catch to guarantee no exception crosses the REAPER C callback boundary
-// (the same discipline persist.cpp uses — see its non-throwing scanPruneOrphans comment).
+// (the same discipline the prune shell uses — see prune_fs.cpp's non-throwing scan comment).
 //
 // Returns the path object (not a narrow string) so the caller can:
 //   (a) pass path.u8string() to TrackFX_SetPreset — UTF-8 on MSVC, not ACP-converted,