feat: force project naming on creation and integrate autosave from start

src/pages/Dashboard.tsx

@@ -43,6 +43,24 @@ export default function Dashboard() {
     }
   };
 
+  const handleNewProject = async () => {
+    const name = prompt('Enter a name for the new project:');
+    if (!name || name.trim() === '') return;
+    
+    try {
+      const res = await api.saveProject({
+        name: name.trim(),
+        scene_data: {}
+      });
+      if (res.id) {
+        navigate(`/editor/${res.id}`);
+      }
+    } catch (err) {
+      console.error('Failed to create project', err);
+      alert('Failed to create project');
+    }
+  };
+
   const handleSignOut = async () => {
     await signOut();
     navigate('/');
@@ -90,7 +108,7 @@ export default function Dashboard() {
         <div className="flex items-center justify-between mb-6">
           <h2 className="text-2xl font-bold">Your Projects</h2>
           <button 
-            onClick={createNewProject}
+            onClick={handleNewProject}
             className="flex items-center gap-2 bg-primary hover:bg-primary/90 text-white px-4 py-2 rounded-xl transition-colors font-medium text-sm"
           >
             <Plus size={16} /> New Project

src/pages/Editor.tsx

@@ -655,46 +655,33 @@ export default function Editor() {
   const [openMenu, setOpenMenu] = useState<string | null>(null);
   const sceneInputRef = useRef<HTMLInputElement>(null);
 
-  const newScene = () => {
-    // Reset all scene state to defaults
-    setSceneObjects([]);
-    setSelectedIds([]);
-    setLoadedModel(null);
-    setModelData(null);
-    setModelBounds(null);
-    setHistory([]);
-    setHistoryIndex(-1);
-    setAdditionalLights([]);
-    setBackplateImage(null);
-    setCustomHdri(null);
-    setBackgroundColor('#444444');
-    setBackgroundType('color');
-    setEnvPreset('studio');
-    setEnvRotation(0);
-    setGlobalMaterialProps({
-      color: '#ffffff', roughness: 0.2, metalness: 0.1, clearcoat: 0,
-      transmission: 0, thickness: 0, ior: 1.5, sheen: 0, opacity: 1,
-      specularIntensity: 1, emissive: '#000000', emissiveIntensity: 0,
-      map: undefined, normalMap: undefined, specularMap: undefined, alphaMap: undefined,
-      uvScale: 1, uvTiling: [1, 1], uvOffset: [0, 0], uvRotation: 0, mappingType: 'uv'
-    });
-    setLightProps({ intensity: 1, color: '#ffffff', shadowBias: -0.0005, shadowRadius: 4 });
-    setGroundProps({ showShadow: true, shadowIntensity: 0.4, shadowRotation: 0, shadowSoftness: 0.5, shadowLength: 10 });
-    setCameraProps(prev => ({
-      ...prev, fov: 35, zoom: 1, autoRotate: false, orthographic: false,
-      position: [5, 3, 5], target: [0, 0.5, 0], pivot: [0, 0, 0],
-      spherical: { distance: 7.68, azimuth: 45, inclination: 20, twist: 0 },
-    }));
-    setCameraPresets([{ id: 'default', name: 'Default View', fov: 35, zoom: 1, position: [3, 2, 5], target: [0, 0, 0] }]);
-    blobURLs.forEach(url => URL.revokeObjectURL(url));
-    setBlobURLs([]);
-    setOpenMenu(null);
-    setShowUVEditor(false);
-    setIsRendering(false);
-    setImportStatus(null);
-    setImportError(null);
-    if (fileInputRef.current) fileInputRef.current.value = '';
-    if (sceneInputRef.current) sceneInputRef.current.value = '';
+  const newScene = async () => {
+    if (!confirm("Are you sure you want to create a new scene? Unsaved changes in the current scene will be lost.")) return;
+
+    const name = prompt('Enter a name for the new project:');
+    if (!name || name.trim() === '') return;
+
+    setSaveStatus('saving');
+    try {
+      const res = await api.saveProject({
+        name: name.trim(),
+        scene_data: { 
+          sceneObjects: [],
+          backgroundColor: '#444444',
+          backgroundType: 'color',
+          envPreset: 'studio',
+          lightProps: { intensity: 1, color: '#ffffff', shadowBias: -0.0005, shadowRadius: 4 },
+          groundProps: { showShadow: true, shadowIntensity: 0.4, shadowRotation: 0, shadowSoftness: 0.5, shadowLength: 10 }
+        }
+      });
+      if (res.id) {
+        navigate(`/editor/${res.id}`);
+      }
+    } catch (err) {
+      console.error('Failed to create project', err);
+      alert('Failed to create project');
+      setSaveStatus('unsaved');
+    }
   };
 
   const saveScene = async (name: string) => {