feat: add Docker support with Dockerfile and docker-compose.yml, update asset upload to use backend URL

app/pages/index.vue

@@ -77,9 +77,9 @@ const uploadDesignAsset = async (
     throw new Error("Asset uploads can only run in the browser context.");
   }
 
-  const storageUrl = config.public.storageUrl;
-  if (!storageUrl) {
-    throw new Error("Storage URL is not configured.");
+  const backendUrl = config.public.backendUrl;
+  if (!backendUrl) {
+    throw new Error("Backend URL is not configured.");
   }
 
   const formData = new FormData();
@@ -92,7 +92,7 @@ const uploadDesignAsset = async (
   }
 
   return await $fetch<StorageUploadResponse>("/storage/upload", {
-    baseURL: storageUrl,
+    baseURL: backendUrl,
     method: "POST",
     headers: {
       "content-type": "multipart/form-data",