fix: 修复月卡无法编辑次数的问题

packages/server/src/user/__tests__/user.service.spec.ts

@@ -544,6 +544,123 @@ describe('UserService', () => {
     })
   })
 
+  describe('updateUserMembership', () => {
+    const startDate = '2026-09-01'
+    const expireDate = '2099-10-01'
+
+    it('snapshots a submitted count when creating a DURATION membership', async () => {
+      mockPrisma.membership.findFirst.mockResolvedValue(null)
+      mockPrisma.membership.create.mockResolvedValue({ id: 'mem-duration-001' })
+
+      await service.updateUserMembership('user-1', {
+        cardTypeId: 'card-duration-001',
+        remainingTimes: 10,
+        startDate,
+        expireDate,
+      })
+
+      expect(mockPrisma.membership.create).toHaveBeenCalledWith(
+        expect.objectContaining({
+          data: expect.objectContaining({
+            userId: 'user-1',
+            cardTypeId: 'card-duration-001',
+            remainingTimes: 10,
+            totalTimes: 10,
+            status: MembershipStatus.ACTIVE,
+          }),
+        }),
+      )
+    })
+
+    it('preserves the existing count snapshot when the submitted remaining count does not exceed it', async () => {
+      mockPrisma.membership.findFirst.mockResolvedValue({
+        id: 'mem-duration-001',
+        userId: 'user-1',
+        cardTypeId: 'card-duration-001',
+        remainingTimes: 6,
+        totalTimes: 10,
+      })
+      mockPrisma.membership.update.mockResolvedValue({ id: 'mem-duration-001' })
+
+      await service.updateUserMembership('user-1', {
+        membershipId: 'mem-duration-001',
+        cardTypeId: 'card-duration-001',
+        remainingTimes: 8,
+        startDate,
+        expireDate,
+      })
+
+      expect(mockPrisma.membership.update).toHaveBeenCalledWith(
+        expect.objectContaining({
+          where: { id: 'mem-duration-001' },
+          data: expect.objectContaining({
+            cardTypeId: 'card-duration-001',
+            remainingTimes: 8,
+            totalTimes: 10,
+            status: MembershipStatus.ACTIVE,
+          }),
+        }),
+      )
+    })
+
+    it('raises the count snapshot when the submitted remaining count exceeds it', async () => {
+      mockPrisma.membership.findFirst.mockResolvedValue({
+        id: 'mem-duration-001',
+        userId: 'user-1',
+        cardTypeId: 'card-duration-001',
+        remainingTimes: 6,
+        totalTimes: 10,
+      })
+      mockPrisma.membership.update.mockResolvedValue({ id: 'mem-duration-001' })
+
+      await service.updateUserMembership('user-1', {
+        membershipId: 'mem-duration-001',
+        cardTypeId: 'card-duration-001',
+        remainingTimes: 12,
+        startDate,
+        expireDate,
+      })
+
+      expect(mockPrisma.membership.update).toHaveBeenCalledWith(
+        expect.objectContaining({
+          data: expect.objectContaining({
+            remainingTimes: 12,
+            totalTimes: 12,
+          }),
+        }),
+      )
+    })
+
+    it('resets the count snapshot when changing to a different card type', async () => {
+      mockPrisma.membership.findFirst.mockResolvedValue({
+        id: 'mem-duration-001',
+        userId: 'user-1',
+        cardTypeId: 'card-duration-001',
+        remainingTimes: 6,
+        totalTimes: 10,
+      })
+      mockPrisma.membership.update.mockResolvedValue({ id: 'mem-duration-001' })
+
+      await service.updateUserMembership('user-1', {
+        membershipId: 'mem-duration-001',
+        cardTypeId: 'card-duration-002',
+        remainingTimes: 8,
+        startDate,
+        expireDate,
+      })
+
+      expect(mockPrisma.membership.update).toHaveBeenCalledWith(
+        expect.objectContaining({
+          data: expect.objectContaining({
+            cardTypeId: 'card-duration-002',
+            remainingTimes: 8,
+            totalTimes: 8,
+          }),
+        }),
+      )
+    })
+  })
+
   describe('deleteUserMembership', () => {
     it('expires only the selected membership', async () => {
       mockPrisma.membership.findFirst.mockResolvedValue({