fix: resolve 401 Unauthorized in Gemini editUVLayer by properly passing auth token, update loading UI with grayscale/blur, fix WebGLShadowMap deprecation warnings

src/components/ImageTo3DModal.tsx

@@ -29,7 +29,7 @@ const ModelPreview = ({ url }: { url: string }) => {
   if (!model) return <div className="absolute inset-0 flex items-center justify-center"><Loader2 className="w-8 h-8 animate-spin text-zinc-500" /></div>;
 
   return (
-    <Canvas shadows camera={{ position: [0, 1.5, 3], fov: 45 }}>
+    <Canvas shadows={{ type: THREE.PCFShadowMap }} camera={{ position: [0, 1.5, 3], fov: 45 }}>
       <Stage environment="studio" intensity={0.5}>
         <primitive object={model} />
       </Stage>
@@ -39,7 +39,7 @@ const ModelPreview = ({ url }: { url: string }) => {
 };
 
 export const ImageTo3DModal: React.FC<ImageTo3DModalProps> = ({ isOpen, onClose, onPushToApp }) => {
-  const { profile, setProfile, token } = useAuthStore();
+  const { profile, setProfile } = useAuthStore();
   const [meshyApiKey, setMeshyApiKey] = useState('');
   
   // Image states
@@ -97,6 +97,7 @@ export const ImageTo3DModal: React.FC<ImageTo3DModalProps> = ({ isOpen, onClose,
     setCleanedImagePreview(null);
     try {
       const base64 = await fileToDataUrl(fileToClean);
+      const token = localStorage.getItem('auth_token') || '';
       const newUrl = await editUVLayer("Remove the background and make it solid transparent or white. Also carefully remove all text, labels, logos, and stickers, keeping the product as a perfectly clean, plain, unbranded object.", base64, token);
       
       const res = await fetch(newUrl);
@@ -300,10 +301,13 @@ export const ImageTo3DModal: React.FC<ImageTo3DModalProps> = ({ isOpen, onClose,
                         {/* Cleaned Image */}
                         <div className="flex-1 relative border-2 border-solid border-zinc-700 rounded-xl overflow-hidden bg-zinc-900/50 flex items-center justify-center group">
                           {isCleaningImage ? (
-                            <div className="flex flex-col items-center text-zinc-400 gap-3">
-                              <Loader2 size={28} className="animate-spin text-blue-500" />
-                              <span className="text-sm font-medium">AI Cleaning...</span>
-                            </div>
+                            <>
+                              <img src={originalImagePreview} alt="Original Grayscale" className="absolute inset-0 w-full h-full object-contain p-2 opacity-30 grayscale blur-sm" />
+                              <div className="absolute inset-0 flex flex-col items-center justify-center text-zinc-300 gap-3 bg-black/40 z-10">
+                                <Loader2 size={28} className="animate-spin text-blue-500" />
+                                <span className="text-sm font-medium">AI Cleaning Image...</span>
+                              </div>
+                            </>
                           ) : cleanedImagePreview ? (
                             <>
                               <img src={cleanedImagePreview} alt="Cleaned" className="w-full h-full object-contain p-2" />
@@ -405,22 +409,23 @@ export const ImageTo3DModal: React.FC<ImageTo3DModalProps> = ({ isOpen, onClose,
                       <h3 className="text-sm font-bold text-zinc-200">3D Preview</h3>
                     </div>
                     
-                    <div className="flex-1 relative flex items-center justify-center">
-                      {generatedModelUrl ? (
+                    <div className="flex-1 relative flex items-center justify-center overflow-hidden">
+                      {isGenerating ? (
+                        <>
+                          {cleanedImagePreview || originalImagePreview ? (
+                            <img src={(cleanedImagePreview || originalImagePreview) as string} alt="Generating Base" className="absolute inset-0 w-full h-full object-contain p-8 opacity-20 grayscale blur-md scale-110" />
+                          ) : null}
+                          <div className="absolute inset-0 flex flex-col items-center justify-center text-zinc-300 bg-black/60 z-20">
+                            <Loader2 size={36} className="animate-spin text-blue-500 mb-4" />
+                            <p className="text-sm font-medium text-zinc-200">{progressMessage}</p>
+                          </div>
+                        </>
+                      ) : generatedModelUrl ? (
                         <ModelPreview url={generatedModelUrl} />
                       ) : (
                         <div className="flex flex-col items-center justify-center text-zinc-600 p-6 text-center">
-                          {isGenerating ? (
-                            <>
-                              <Loader2 size={32} className="animate-spin text-blue-500 mb-4" />
-                              <p className="text-sm font-medium text-zinc-300">{progressMessage}</p>
-                            </>
-                          ) : (
-                            <>
-                              <Box size={32} className="mb-3 opacity-50" />
-                              <p className="text-sm">Your 3D model will appear here</p>
-                            </>
-                          )}
+                          <Box size={32} className="mb-3 opacity-50" />
+                          <p className="text-sm">Your 3D model will appear here</p>
                         </div>
                       )}
                     </div>

src/components/UVEditor.tsx

@@ -48,7 +48,7 @@ export function UVEditor({ onClose, onSave, targetObject, loadedModel, sceneObje
   const fileInputRef = useRef<HTMLInputElement>(null);
   const dragRef = useRef<{ handle: Handle; startX: number; startY: number; layer: Layer } | null>(null);
 
-  const token = useAuthStore(state => state.token);
+  const token = localStorage.getItem('auth_token') || '';
   const [aiPrompt, setAiPrompt] = useState("");
   const [isEditingLayer, setIsEditingLayer] = useState(false);
   const [aiPreviewUrl, setAiPreviewUrl] = useState<string | null>(null);
@@ -596,7 +596,7 @@ export function UVEditor({ onClose, onSave, targetObject, loadedModel, sceneObje
               <span className="text-[10px] font-bold text-zinc-500 uppercase tracking-widest">3D Preview</span>
             </div>
             <div className="w-full aspect-square bg-zinc-950 rounded-xl overflow-hidden border border-zinc-800">
-              <Canvas shadows camera={{ position: [2, 2, 2], fov: 45 }}>
+              <Canvas shadows={{ type: THREE.PCFShadowMap }} camera={{ position: [2, 2, 2], fov: 45 }}>
                 <ambientLight intensity={0.5} />
                 <directionalLight position={[5, 5, 5]} intensity={1} castShadow />
                 <Environment preset="studio" />

src/pages/Editor.tsx

@@ -2451,7 +2451,7 @@ export default function Editor() {
         <div className="flex-1 relative bg-zinc-950">
           <ErrorBoundary>
             <Canvas 
-              shadows 
+              shadows={{ type: THREE.PCFShadowMap }}
               dpr={[1, 2]} 
               gl={{ preserveDrawingBuffer: true, alpha: true }}
               performance={{ min: 0.5 }}

src/pages/SparkPlug.tsx

@@ -406,7 +406,7 @@ export default function SparkPlug() {
               ) : (
                 <div className="w-full h-[400px] bg-zinc-900 rounded-xl overflow-hidden relative border border-zinc-800 flex flex-col items-center justify-center">
                   {generatedGlbUrl ? (
-                    <Canvas shadows dpr={[1, 2]} camera={{ position: [0, 0, 4], fov: 45 }}>
+                    <Canvas shadows={{ type: THREE.PCFShadowMap }} dpr={[1, 2]} camera={{ position: [0, 0, 4], fov: 45 }}>
                       <Suspense fallback={null}>
                         <Stage environment="studio" intensity={0.5}>
                           <ModelPreview url={generatedGlbUrl} />