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/core/ui/bank_grid.h

@@ -1,7 +1,7 @@
 #pragma once
 #include "core/ui/rect.h"
 // bank_grid — the REAPER-free layout math and cache-key logic behind the docked
-// bank_panel (M5, Wave A). The panel shell (bank_panel.cpp) owns the SWELL window,
+// bank_panel (M5, Wave A). The panel shell (shell/panel/) owns the SWELL window,
 // LICE drawing, and PCM reads; ALL of that is REAPER-bound and DAW-verified. What
 // is NOT DAW-bound — how N sample cells tile a panel of a given pixel size, and
 // the key that identifies a cached thumbnail — lives here so it is unit-tested
@@ -80,7 +80,7 @@ std::string thumbnailKeyString(const ThumbnailKey& key);
 // --- Interaction (M5 Wave B): hit-test, selection, keyboard nav --------------
 //
 // All REAPER-free so the panel's interaction LOGIC is unit-tested outside the DAW,
-// exactly as the layout math is. The panel shell (bank_panel.cpp) reads live mouse
+// exactly as the layout math is. The panel shell (shell/panel/) reads live mouse
 // coordinates / key codes / modifier state via SWELL and calls into these; it owns
 // no selection arithmetic of its own.
 

src/core/ui/card_drag.h

@@ -2,7 +2,7 @@
 // card_drag — the REAPER-free decision logic behind the L7 in-grid reorder drag. Three
 // pure concerns live here so they are unit-tested outside the DAW (CLAUDE.md §load-bearing
 // split); the SWELL wiring, SetCursor call, cursor resources, and drop-target draw stay in
-// the shell (bank_panel.cpp). Mirror of drag_out::decideGesture.
+// the shell (shell/panel/panel_drag.cpp). Mirror of drag_out::decideGesture.
 //
 //   1. GESTURE PRECEDENCE (F3 settled). A live drag resolves to exactly one gesture, in a
 //      strict precedence the shell evaluates on every mouse-move / at drop:

src/core/ui/drag_out.h

@@ -3,7 +3,7 @@
 // drag_out — the REAPER-free / OS-free decision logic behind the bank_panel's native OS
 // drag-out (Milestone 11, the final polish point). Two pure concerns live here so they are
 // unit-tested outside the DAW (CLAUDE.md §load-bearing split); the OLE / SWELL initiation
-// and the bank_panel gesture hook stay in the shell (drag_out_win.* + bank_panel.cpp).
+// and the bank_panel gesture hook stay in the shell (drag_out_win.* + shell/panel/panel_drag.cpp).
 //
 //   1. GESTURE BOUNDARY (invariant #4 — do not regress the internal drag). The panel
 //      already runs an INTERNAL drag: press a selected cell, cross a threshold, drop onto

src/core/ui/footer_bar.h

@@ -3,7 +3,7 @@
 // footer_bar — the REAPER-free, LICE-free layout + hit-test math for the bank_panel's L4
 // footer LEFT group: the narrowed [Arrange|Design] mode toggle, its compact per-mode count
 // label, and the Tail button, laid out left-to-right at the footer's left. The panel shell
-// (bank_panel.cpp) owns the SWELL window, LICE drawing, and the click dispatch (cycle tail /
+// (shell/panel/) owns the SWELL window, LICE drawing, and the click dispatch (cycle tail /
 // activate a mode); what is NOT DAW-bound — WHERE the toggle box, the count label, and the
 // Tail button sit, and which one a click lands on — lives here so it is unit-tested outside
 // the DAW (CLAUDE.md §load-bearing split). Mirror of action_bar / mode_switch / prune_button.

src/core/ui/prune_button.h

@@ -3,7 +3,7 @@
 // prune_button — the REAPER-free layout math behind the bank_panel's Prune button
 // (Phase R, Wave 3 — R3, fork R-E). A single labelled button drawn in the panel's
 // tail-footer strip that fires the "Prune bank folder" command. The panel shell
-// (bank_panel.cpp) owns the SWELL window, LICE drawing, and the Main_OnCommand
+// (shell/panel/) owns the SWELL window, LICE drawing, and the Main_OnCommand
 // dispatch of the registered command id — all REAPER-bound, DAW-verified. What is
 // NOT DAW-bound — WHERE the button sits in the footer and whether a click lands on
 // it — lives here so it is unit-tested outside the DAW (CLAUDE.md §load-bearing
@@ -42,7 +42,7 @@ using ButtonRect = Rect;  // Q-W1: the shared concrete ui::Rect (core/ui/rect.h)
 //   * buttonWidth   — the button's fixed width.
 //   * rightInset    — gap from the footer's right edge to the button's right edge (the
 //                     button sits left of this inset, clearing the right-aligned version
-//                     readout). COUPLED TO drawFooter (bank_panel.cpp): the version readout
+//                     readout). COUPLED TO drawFooter (panel_render.cpp): the version readout
 //                     uses an 8 px right margin. The button's right edge lands at
 //                     footer.right - 84, i.e. 76 px left of the readout's right margin —
 //                     enough clearance for the ~10-char label. ALSO COUPLED to

src/core/ui/tab_strip.h

@@ -8,7 +8,7 @@
 // tabs). What is NOT DAW-bound — how N fixed-width tabs tile a strip of a given
 // pixel width, where the overflow chevrons sit, which tab/chevron a click lands in,
 // and how far the strip may scroll — lives here so it is unit-tested outside the
-// DAW (CLAUDE.md §load-bearing split). The panel shell (bank_panel.cpp) owns the
+// DAW (CLAUDE.md §load-bearing split). The panel shell (shell/panel/) owns the
 // SWELL window, LICE drawing, and the live BankBook read; it calls into this seam
 // for every rect and every hit. Mirror of mode_switch / bank_grid.
 //