security: 隐私接口全面加固，统一 token 鉴权

- /api/orders/[id] 只返回 id/status/expiresAt，移除 user_name/pay_url 等隐私字段
- /api/orders/[id]/cancel 改为 token 鉴权，服务端验证用户身份后执行取消
- /api/orders (POST 响应) 过滤 userName/userBalance，不向客户端暴露
- /api/user 移除 username/email/balance，只返回 id/status 和 config
- /api/users/[id] 只返回 {id, exists}，不暴露任何隐私信息
- pay/page.tsx 恢复从服务端动态获取 config，无 token 时只显示用户 ID
- pay/orders/page.tsx 无 token 时不查询隐私接口，统一按钮样式
- PaymentQRCode 新增 token prop，无 token 时隐藏取消按钮
- 创建订单失败改为中文错误提示

src/app/api/orders/[id]/cancel/route.ts

@@ -1,9 +1,10 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { z } from 'zod';
 import { cancelOrder, OrderError } from '@/lib/order/service';
+import { getCurrentUserByToken } from '@/lib/sub2api/client';
 
 const cancelSchema = z.object({
-  user_id: z.number().int().positive(),
+  token: z.string().min(1),
 });
 
 export async function POST(request: NextRequest, { params }: { params: Promise<{ id: string }> }) {
@@ -13,10 +14,18 @@ export async function POST(request: NextRequest, { params }: { params: Promise<{
     const parsed = cancelSchema.safeParse(body);
 
     if (!parsed.success) {
-      return NextResponse.json({ error: '参数错误', details: parsed.error.flatten().fieldErrors }, { status: 400 });
+      return NextResponse.json({ error: '缺少 token 参数' }, { status: 400 });
     }
 
-    const outcome = await cancelOrder(id, parsed.data.user_id);
+    let userId: number;
+    try {
+      const user = await getCurrentUserByToken(parsed.data.token);
+      userId = user.id;
+    } catch {
+      return NextResponse.json({ error: '登录态已失效，无法取消订单' }, { status: 401 });
+    }
+
+    const outcome = await cancelOrder(id, userId);
     if (outcome === 'already_paid') {
       return NextResponse.json({ success: true, status: 'PAID', message: '订单已支付完成' });
     }

src/app/api/orders/[id]/route.ts

@@ -1,6 +1,7 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { prisma } from '@/lib/db';
 
+// 仅返回订单状态相关字段，不暴露任何用户隐私信息
 export async function GET(request: NextRequest, { params }: { params: Promise<{ id: string }> }) {
   const { id } = await params;
 
@@ -8,19 +9,8 @@ export async function GET(request: NextRequest, { params }: { params: Promise<{
     where: { id },
     select: {
       id: true,
-      userId: true,
-      userName: true,
-      amount: true,
       status: true,
-      paymentType: true,
-      payUrl: true,
-      qrCode: true,
-      qrCodeImg: true,
       expiresAt: true,
-      paidAt: true,
-      completedAt: true,
-      failedReason: true,
-      createdAt: true,
     },
   });
 
@@ -29,19 +19,8 @@ export async function GET(request: NextRequest, { params }: { params: Promise<{
   }
 
   return NextResponse.json({
-    order_id: order.id,
-    user_id: order.userId,
-    user_name: order.userName,
-    amount: Number(order.amount),
+    id: order.id,
     status: order.status,
-    payment_type: order.paymentType,
-    pay_url: order.payUrl,
-    qr_code: order.qrCode,
-    qr_code_img: order.qrCodeImg,
-    expires_at: order.expiresAt,
-    paid_at: order.paidAt,
-    completed_at: order.completedAt,
-    failed_reason: order.failedReason,
-    created_at: order.createdAt,
+    expiresAt: order.expiresAt,
   });
 }

src/app/api/orders/route.ts

@@ -44,7 +44,9 @@ export async function POST(request: NextRequest) {
       clientIp,
     });
 
-    return NextResponse.json(result);
+    // 不向客户端暴露 userName / userBalance 等隐私字段
+    const { userName: _u, userBalance: _b, ...safeResult } = result;
+    return NextResponse.json(safeResult);
   } catch (error) {
     if (error instanceof OrderError) {
       return NextResponse.json({ error: error.message, code: error.code }, { status: error.statusCode });

src/app/api/user/route.ts

@@ -15,10 +15,7 @@ export async function GET(request: NextRequest) {
     return NextResponse.json({
       user: {
         id: user.id,
-        username: user.username,
-        email: user.email,
         status: user.status,
-        balance: user.balance,
       },
       config: {
         enabledPaymentTypes: env.ENABLED_PAYMENT_TYPES,

src/app/api/users/[id]/route.ts

@@ -1,6 +1,7 @@
 import { NextResponse } from 'next/server';
 import { getUser } from '@/lib/sub2api/client';
 
+// 仅返回用户是否存在，不暴露私隐信息（用户名/邮箱/余额需 token 验证）
 export async function GET(_request: Request, { params }: { params: Promise<{ id: string }> }) {
   const { id } = await params;
   const userId = Number(id);
@@ -11,16 +12,7 @@ export async function GET(_request: Request, { params }: { params: Promise<{ id:
 
   try {
     const user = await getUser(userId);
-    const displayName = user.username || user.email || `User #${user.id}`;
-
-    return NextResponse.json({
-      id: user.id,
-      username: user.username,
-      email: user.email,
-      displayName,
-      balance: user.balance,
-      status: user.status,
-    });
+    return NextResponse.json({ id: user.id, exists: true });
   } catch (error) {
     if (error instanceof Error && error.message === 'USER_NOT_FOUND') {
       return NextResponse.json({ error: 'User not found' }, { status: 404 });