Map model provider configuration errors

frontend/src/lib/admin/admin-error-response.ts

@@ -7,10 +7,30 @@ function isPostgresError(error: unknown): error is { code: string } {
     && typeof (error as { code?: unknown }).code === "string";
 }
 
+function errorMessage(error: unknown) {
+  return typeof error === "object" && error !== null && "message" in error
+    && typeof (error as { message?: unknown }).message === "string"
+    ? (error as { message: string }).message
+    : "";
+}
+
 export function adminErrorResponse(error: unknown) {
   if (error instanceof AdminAuthorizationError) {
     return NextResponse.json({ error: error.message }, { status: error.status });
   }
+  const message = errorMessage(error);
+  if (message.includes("模型供应商地址不在服务器允许列表中")) {
+    return NextResponse.json({ error: message }, { status: 400 });
+  }
+  if (message.includes("网关地址不允许")) {
+    return NextResponse.json({ error: message }, { status: 400 });
+  }
+  if (message.includes("model_provider_url_unsafe")) {
+    return NextResponse.json({ error: "模型供应商地址不安全或解析到内网" }, { status: 400 });
+  }
+  if (message.includes("模型供应商密钥未配置") || message.includes("model_provider_key_required")) {
+    return NextResponse.json({ error: "模型供应商密钥未配置" }, { status: 409 });
+  }
   if (isPostgresError(error)) {
     if (error.code === "42501") return NextResponse.json({ error: "无权执行此操作" }, { status: 403 });
     if (error.code === "40001") return NextResponse.json({ error: "资源已被其他管理员修改，请刷新后重试" }, { status: 409 });