fix(order): 抢单收紧为仅「待接单」可抢，抢单池同步过滤

- claimOrder 状态闸门改为严格只允许 待接单（含 CAS 条件 status='待接单'），杜绝抢已在履约/已服务/已核销的订单

- getOrdersPool 仅返回未认领的 待接单 订单

- 种子数据新增一笔待接单订单用于演示抢单

- 更新/新增回归护栏 claim-status-gate.spec.ts（78 套件/608 用例全绿）

server/src/db/mysql.ts

@@ -702,7 +702,8 @@ async function seedInitialDataIfEmpty(conn: any): Promise<void> {
       ('ord_02', 'PW202609280002', '钱老板', '林深见鹿', 'KTV陪唱', '客户全包', 288, 3, 864.00, '工体西路8号纯KTV 888包厢', '履约中'),
       ('ord_03', 'PW202609280003', '孙先生', '小鱼泡泡', '同城陪喝', '费用AA', 198, 2, 396.00, '望京合生麒麟社跳海酒馆', '待支付'),
       ('ord_04', 'PW202609280004', '李小姐', '顾北辰', '线上电竞', '无需承担', 88, 4, 352.00, '线上语音频道 #9021', '已完成'),
-      ('ord_05', 'PW202609280005', '周先生', '林深见鹿', 'KTV陪唱', '客户全包', 288, 2, 576.00, '海淀中关村好乐迪KTV', '争议仲裁中');
+      ('ord_05', 'PW202609280005', '周先生', '林深见鹿', 'KTV陪唱', '客户全包', 288, 2, 576.00, '海淀中关村好乐迪KTV', '争议仲裁中'),
+      ('ord_06', 'PW202609280006', '吴老板', '待接单大神', '同城陪伴', '客户全包', 128, 2, 256.00, '朝阳区三里屯商圈', '待接单');
     `);
   }
 

server/src/db/repository.ts

@@ -1875,7 +1875,7 @@ export class MysqlRepository {
         amount, location, expense_burden as payMethod,
         status, created_at as createdAt
       FROM orders
-      WHERE status NOT IN ('已完成', '已取消', '已关闭', '已退款', '已全额退款', '争议仲裁中', '已到场核销', '待确认')
+      WHERE status = '待接单'
         AND (claimed_by IS NULL OR claimed_by = 0)
       ORDER BY created_at DESC
       LIMIT 20
@@ -1929,7 +1929,6 @@ export class MysqlRepository {
       throw err;
     }
 
-    const blocked = ['待付款', '待支付', '已完成', '已取消', '已关闭', '已退款', '已全额退款', '争议仲裁中'];
     const [curRows]: any = await pool.query('SELECT id, status, claimed_by FROM orders WHERE id = ? OR order_no = ? LIMIT 1', [orderId, orderId]);
     const cur = curRows && curRows[0];
     if (!cur) {
@@ -1938,8 +1937,9 @@ export class MysqlRepository {
       err.code = 40400;
       throw err;
     }
-    if (blocked.includes(String(cur.status))) {
-      const err: any = new Error(`当前订单状态(${cur.status})不可接单`);
+    // 状态闸门：仅「待接单」可被抢单，严禁抢已在履约/已服务/已核销的订单
+    if (String(cur.status) !== '待接单') {
+      const err: any = new Error(`当前订单状态(${cur.status})不可接单（仅待接单可抢）`);
       err.status = 409;
       err.code = 40900;
       throw err;
@@ -1959,7 +1959,7 @@ export class MysqlRepository {
       SET status = '履约中', expert_id = ?, companion_name = ?, expert_avatar = ?,
           claimed_by = ?, claimed_at = NOW(), paid_at = COALESCE(paid_at, NOW())
       WHERE (id = ? OR order_no = ?)
-        AND status NOT IN ('待付款', '待支付', '已完成', '已取消', '已关闭', '已退款', '已全额退款', '争议仲裁中')
+        AND status = '待接单'
         AND (claimed_by IS NULL OR claimed_by = ?)
     `, [expertId, expertData.companionName || '我 (接单大神)', expertData.expertAvatar || '', expertId, orderId, orderId, expertId]);
 

server/tests/claim-status-gate.spec.ts

@@ -0,0 +1,35 @@
+// 已读取AGENTS.md
+import * as fs from 'fs';
+import * as path from 'path';
+
+/**
+ * 第六十二批回归闸门：抢单状态收紧为「仅待接单可抢」
+ */
+describe('第六十二批抢单状态闸门', () => {
+  const rootDir = path.resolve(__dirname, '../../');
+  const repoCode = fs.readFileSync(path.join(rootDir, 'server/src/db/repository.ts'), 'utf-8');
+  const mysqlCode = fs.readFileSync(path.join(rootDir, 'server/src/db/mysql.ts'), 'utf-8');
+
+  const claimBlock = () => {
+    const start = repoCode.indexOf('async claimOrder(');
+    expect(start).toBeGreaterThan(-1);
+    return repoCode.slice(start, start + 2600);
+  };
+
+  it('仅待接单可抢单（含 CAS 条件）', () => {
+    const b = claimBlock();
+    expect(b).toContain("String(cur.status) !== '待接单'");
+    expect(b).toContain("仅待接单可抢");
+    expect(b).toContain("AND status = '待接单'");
+  });
+
+  it('抢单池仅含待接单且未认领', () => {
+    const start = repoCode.indexOf('async getOrdersPool(');
+    const block = repoCode.slice(start, start + 900);
+    expect(block).toContain("WHERE status = '待接单'");
+  });
+
+  it('种子数据提供一笔待接单用于演示抢单', () => {
+    expect(mysqlCode).toContain("'待接单');");
+  });
+});

server/tests/order-activity-integrity.spec.ts

@@ -46,9 +46,13 @@ describe('订单与活动资金一致性护栏 (报名超卖 / 抢单 CAS / 评
       expect(code).toContain('该订单已被其他大神抢先接单');
     });
 
-    it('claimOrder 必须拦截不可接单状态', () => {
+    it('claimOrder 必须仅允许待接单抢单', () => {
       const code = fs.readFileSync(serverRepoPath, 'utf-8');
-      expect(code).toContain("const blocked = ['待付款', '待支付', '已完成', '已取消', '已关闭', '已退款', '已全额退款', '争议仲裁中']");
+      const start = code.indexOf('async claimOrder(');
+      expect(start).toBeGreaterThan(-1);
+      const block = code.slice(start, start + 2400);
+      expect(block).toContain("String(cur.status) !== '待接单'");
+      expect(block).toContain("AND status = '待接单'");
     });
 
     it('数据库层必须为 orders 增加 claimed_by / claimed_at 认领标记列', () => {

server/tests/orders-pool-filter.spec.ts

@@ -13,7 +13,7 @@ describe('第二十九批抢单池过滤闸门', () => {
     const start = repoCode.indexOf('async getOrdersPool(');
     expect(start).toBeGreaterThan(-1);
     const block = repoCode.slice(start, start + 1400);
-    expect(block).toContain("WHERE status NOT IN ('已完成', '已取消'");
+    expect(block).toContain("WHERE status = '待接单'");
     expect(block).toContain('claimed_by IS NULL');
     expect(block).toContain('LIMIT 20');
   });