Fix: activate handler creates window directly in development mode

ensureInitialBackendWindowOpen() has an early return when isDevelopment is true,
which is correct for the initial bootstrap path but prevents window creation when
the macOS dock icon is clicked after all windows are closed. Handle development
mode explicitly in the activate handler by calling createWindow() directly.

Author: cursoragent

apps/desktop/src/main.ts

@@ -2022,6 +2022,10 @@ app
         revealWindow(existingWindow);
         return;
       }
+      if (isDevelopment) {
+        mainWindow = createWindow();
+        return;
+      }
       ensureInitialBackendWindowOpen();
     });
   })