feat(admin): delete store staff; city store count links to filtered list

HQ can remove store sub-accounts from primary account detail; cities table store count jumps to /stores?cityId=.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/dukang-api/src/modules/ops/admin-stores.service.ts

@@ -717,4 +717,26 @@ export class AdminStoresService {
     });
     return serializeBigInt(account);
   }
+
+  /** HQ 删除门店子账号（非主账号） */
+  async deleteStoreStaff(parentAccountId: bigint, staffId: bigint) {
+    const parent = await this.prisma.storeAccount.findUnique({ where: { id: parentAccountId } });
+    if (!parent || parent.isPrimary !== 1) {
+      throw new BadRequestException('主账号不存在');
+    }
+    const staff = await this.prisma.storeAccount.findFirst({
+      where: { id: staffId, parentAccountId, isPrimary: 0 },
+    });
+    if (!staff) throw new NotFoundException('子账号不存在');
+
+    const pending = await this.prisma.redeemPendingRecord.count({
+      where: { storeAccountId: staffId },
+    });
+    if (pending > 0) {
+      throw new BadRequestException('该子账号仍有待处理核销单，无法删除');
+    }
+
+    await this.prisma.storeAccount.delete({ where: { id: staffId } });
+    return { ok: true };
+  }
 }