fix: address project review bugs

src/features/ecommerce/EcommercePage.tsx

@@ -3453,8 +3453,6 @@ function ProductClonePage(_props: ProductClonePageProps = {}) {
     return urls;
   };
 
-  const IMAGE_MODEL = "gpt-image-2";
-
   const setCountLabels: Record<CloneSetCountKey, { label: string; promptDesc: string }> = {
     selling: { label: "卖点图", promptDesc: "selling-point infographic image highlighting core product advantages and detail close-ups" },
     white:   { label: "白底图", promptDesc: "clean white-background product photo showing the item from its best angle, studio lighting, no props" },
@@ -3569,7 +3567,6 @@ function ProductClonePage(_props: ProductClonePageProps = {}) {
           const fullPrompt = userText.trim() ? `${subPrompt} Additional user requirements: ${userText.trim()}` : subPrompt;
 
           const { taskId } = await aiGenerationClient.createImageTask({
-            model: IMAGE_MODEL,
             prompt: fullPrompt,
             ratio: normalizeRatioForApi(pRatio),
             quality: pRatio.includes("720") ? "720P" : "1080P",
@@ -3653,7 +3650,6 @@ function ProductClonePage(_props: ProductClonePageProps = {}) {
       const stamp = Date.now();
 
       const { taskId } = await aiGenerationClient.createImageTask({
-        model: IMAGE_MODEL,
         prompt,
         ratio: normalizeRatioForApi(pRatio),
         quality: pRatio.includes("720") ? "720P" : "1080P",
@@ -6564,6 +6560,14 @@ function ProductClonePage(_props: ProductClonePageProps = {}) {
 
       </div>
 
+      {isCloneTool && !isCommandHistoryCollapsed ? (
+        <div
+          className="ecom-command-history__backdrop"
+          role="presentation"
+          onClick={() => setIsCommandHistoryCollapsed(true)}
+        />
+      ) : null}
+
       <aside className="ecom-command-history" aria-label="生成历史">
         <div className="ecom-command-history__tools">
           <button