修复Agent输出设置不再臆造未设置参数

app/(chat)/api/chat/route.ts

@@ -247,6 +247,46 @@ function mergeImageParamsWithAgentRecommendation(params: {
   return Object.keys(merged).length > 0 ? merged : undefined;
 }
 
+function sanitizeAgentOutputSettingsSection(params: {
+  message?: string;
+  userImageParams?: PostRequestBody["imageParams"];
+  hasUserCustomImageParams: boolean;
+}): string | undefined {
+  const { message, userImageParams, hasUserCustomImageParams } = params;
+  if (!message?.trim()) return message;
+
+  const outputSectionRegex = /###\s*输出设置[\s\S]*?(?=\n###\s*|$)/;
+  if (!outputSectionRegex.test(message)) return message;
+
+  if (!hasUserCustomImageParams) {
+    return message.replace(
+      outputSectionRegex,
+      "### 输出设置\n- 参数：按用户面板当前设置执行（未自动改写）"
+    );
+  }
+
+  const lines: string[] = [];
+  const aspectRatio =
+    typeof userImageParams?.aspectRatio === "string" ? userImageParams.aspectRatio.trim() : "";
+  const imageSize =
+    typeof userImageParams?.imageSize === "string" ? userImageParams.imageSize.trim() : "";
+  const imageCount =
+    typeof userImageParams?.imageCount === "number" ? userImageParams.imageCount : undefined;
+
+  if (aspectRatio && aspectRatio !== "auto") {
+    lines.push(`- 宽高比：${aspectRatio}（来自用户面板设置）`);
+  }
+  if (imageSize && imageSize.toUpperCase() !== "2K") {
+    lines.push(`- 清晰度档位：${imageSize.toUpperCase()}（来自用户面板设置）`);
+  }
+  if (typeof imageCount === "number" && Number.isFinite(imageCount) && imageCount !== 1) {
+    lines.push(`- 出图数量：${Math.max(1, Math.round(imageCount))} 张（来自用户面板设置）`);
+  }
+  lines.push("- 其余参数：保持用户面板当前设置");
+
+  return message.replace(outputSectionRegex, `### 输出设置\n${lines.join("\n")}`);
+}
+
 function guessImageMediaType(url: string): string {
   const cleanUrl = url.split("?")[0]?.toLowerCase() || "";
   if (cleanUrl.endsWith(".jpg") || cleanUrl.endsWith(".jpeg")) return "image/jpeg";
@@ -1286,6 +1326,14 @@ export async function POST(request: Request) {
       });
     }
 
+    if (shouldRunAgentConversation && smartAutoFriendlyMessage) {
+      smartAutoFriendlyMessage = sanitizeAgentOutputSettingsSection({
+        message: smartAutoFriendlyMessage,
+        userImageParams: requestBody.imageParams,
+        hasUserCustomImageParams,
+      });
+    }
+
     const session = await auth();
 
     if (!session?.user) {