fix: disable default menu browser reloads and implement Change Image workspace resetter

renderer.js

@@ -69,6 +69,7 @@ const elements = {
   infoFilename: document.getElementById('info-filename'),
   infoResolution: document.getElementById('info-resolution'),
   infoSize: document.getElementById('info-size'),
+  btnChangeImage: document.getElementById('btn-change-image'),
   
   // Control Tower: AI Processor
   btnRemoveBg: document.getElementById('btn-remove-bg'),
@@ -147,6 +148,39 @@ function initWorkspace() {
       selectLocalImage();
     }
   });
+
+  // Change image button click
+  elements.btnChangeImage.addEventListener('click', resetWorkspaceToEmpty);
+}
+
+function resetWorkspaceToEmpty() {
+  currentImagePath = null;
+  originalFileName = '';
+  processedTempPath = null;
+  activeBgMode = 'transparent';
+  scaleX = 1;
+  scaleY = 1;
+
+  // Destroy cropper safely
+  if (cropper) {
+    cropper.destroy();
+    cropper = null;
+  }
+
+  // Restore drag drop state views
+  elements.editorContainer.classList.add('hidden');
+  elements.dropzone.classList.remove('hidden');
+  
+  elements.infoCardLoaded.classList.add('hidden');
+  elements.infoCardEmpty.classList.remove('hidden');
+
+  // Disable processing button until a new file is loaded
+  elements.btnRemoveBg.disabled = true;
+
+  // Clear background customizations
+  resetBgSettings();
+
+  showToast("Image Changed", "Workspace cleared. You can now load a new image.", "info");
 }
 
 // --- PYTHON VENV INSTALLER ENGINE ---