feat: route consultations by model

frontend/src/app/api/models/route.ts

@@ -0,0 +1,38 @@
+import { NextResponse } from "next/server";
+import { createServerSupabaseClient } from "@/lib/supabase/server";
+import { publicLanguageModelCatalog } from "@/mastra/model";
+
+export const runtime = "nodejs";
+
+export async function GET() {
+  let supabase: Awaited<ReturnType<typeof createServerSupabaseClient>>;
+  try {
+    supabase = await createServerSupabaseClient();
+  } catch (error) {
+    if (error instanceof Error) {
+      return NextResponse.json(
+        { error: "服务尚未配置", message: "请先配置 Supabase 环境变量。" },
+        { status: 503 },
+      );
+    }
+    throw error;
+  }
+
+  const { data: { user }, error: authError } = await supabase.auth.getUser();
+  if (authError || !user) {
+    return NextResponse.json(
+      { error: "请先登录", message: "登录后才能读取可用模型。" },
+      { status: 401 },
+    );
+  }
+
+  const catalog = publicLanguageModelCatalog();
+  if (!catalog.defaultModelId || catalog.models.length === 0) {
+    return NextResponse.json(
+      { error: "模型服务尚未配置", message: "当前没有可用的咨询模型。" },
+      { status: 503 },
+    );
+  }
+
+  return NextResponse.json(catalog);
+}