Q-W4: split actions.cpp into design_view_actions/bank_actions/prune_action + shared action_registry; bank verbs deduped into promptless bankOp* inner verbs in panel_bank_ops (one mutation home, two UX skins); command-id strings byte-identical; actions.h shim carrier retired

src/shell/capture/capture_orchestrator.cpp

@@ -331,7 +331,7 @@ std::string RunCapture(ReaSamplerSession& session, const CaptureActionDef& def)
 // An undo that removes the captured sample also clears the assign_request that named it,
 // preventing a stale request from pointing at a removed sample. The block uses the house
 // pattern (UNDO_STATE_MISCCFG, discarded on an unsaved project with empty label + zero
-// flag) matching the bank-op family in actions.cpp.
+// flag) matching the bank-op family (persistBankOp, panel_bank_ops).
 void RunCaptureItemAssign(ReaSamplerSession& session)
 {
     // Reuse the Item-scope def from the capture table (index 0) — same range logic, same