Ξ-W2-T1 remediation: print master gain into the bake, derive the window from the dialed sound, reset play mode to Trigger

src/shell/instrument/reaper_bridge.h

@@ -71,11 +71,15 @@ public:
     // affordance: an unavailable action must read Disabled, never enabled-then-refusing.
     bool extensionActionAvailable(const std::string& commandName);
 
-    // Fires the action against THIS INSTANCE's own project tab (getReaperParent(3)), not
-    // whichever tab is focused. Returns false when the action is unregistered — the
-    // invocation itself reports nothing, so a caller learns the result from the state the
-    // action wrote, never from here. Must NOT be called from a mouse handler: it runs the
-    // extension's whole bake landing synchronously, and the action re-points this instance.
+    // Fires the action with THIS INSTANCE's own project tab (getReaperParent(3)) as
+    // Main_OnCommandEx's `proj`, rather than leaving it to whichever tab is focused. What
+    // REAPER then makes current for the action's duration is NOT verified in the DAW, so
+    // this is a request, not a guarantee — the extension side re-derives which project a
+    // request came from and refuses one it cannot safely land. Returns false when the action
+    // is unregistered; the invocation itself reports nothing, so a caller learns the result
+    // from the state the action wrote, never from here. Must NOT be called from a mouse
+    // handler: it runs the extension's whole bake landing synchronously, and the action
+    // re-points this instance.
     bool invokeExtensionAction(const std::string& commandName);
 
     // The effective project tempo (BPM, quarter notes per minute) at the edit cursor of