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/panel/panel_input.cpp

@@ -18,7 +18,7 @@
 #include "shell/panel/panel_input.h"
 
 #include "shell/actions/bank_actions.h" // bankPruneCommandId — the footer Prune dispatch (R3)
-#include "persist.h"                    // ReaSamplerSession — view/tail reads + mutation
+#include "shell/persist/session.h"                    // ReaSamplerSession — view/tail reads + mutation
 #include "core/view/view_mode_model.h"  // autoTagNewContent / NewItem / AutoTag (D2 Wave 2)
 #include "shell/capture/item_read.h"    // itemGuid / itemLaneName — shared item-read seam (D2 W3-B)
 #include "shell/capture/track_guid.h"   // guidString — canonical track GUID key (D2 Wave 2)
@@ -157,7 +157,8 @@ void enumerateLiveGuids(ReaProject* proj, std::set<std::string>& allGuids,
 //
 // INTENTIONAL: membership mutation happens OUTSIDE any Undo block. Auto-tag is a
 // background metadata update (like setting a label), not a destructive project edit.
-// persist.cpp writes it on the next project save alongside the bank and view state, the
+// the persist shell (ext_state_io.cpp) writes it on the next project save alongside the
+// bank and view state, the
 // same way an action-driven tag is persisted. Wrapping this in an Undo block would flood
 // the REAPER undo history with a new entry for every timer tick that sees new content.
 // Returns true iff this tick tagged at least one new GUID into a mode — the signal the