fix(c3): record 坐标 Decimal 返回前转字符串，防泄漏 {s,e,d}

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/record/record.service.spec.ts

@@ -647,6 +647,27 @@ describe('RecordService.detail / list / prepaidList', () => {
     expect(res).toMatchObject({ id: 'r1', items: [{ id: 'ri1' }], photos: [{ id: 'rp1' }], abnormals: [{ id: 'ra1' }] });
   });
 
+  it('detail/list 将 Decimal 坐标序列化为字符串（null 保持 null）', async () => {
+    const recordFindUnique = vi.fn().mockResolvedValue({
+      id: 'r1',
+      recordStatus: 'submitted',
+      checkinLat: { toString: () => '25.010000' },
+      checkinLng: null,
+    });
+    const recordFindMany = vi.fn().mockResolvedValue([
+      { id: 'r2', checkinLat: { toString: () => '26.500000' }, checkinLng: { toString: () => '103.100000' } },
+    ]);
+    const { service } = makeService({ recordFindUnique, recordFindMany });
+
+    const detail = await runWithRequestContext(ctx, () => service.detail('r1'));
+    expect(detail.checkinLat).toBe('25.010000');
+    expect(detail.checkinLng).toBeNull();
+
+    const list = await runWithRequestContext(ctx, () => service.list({}));
+    expect(list[0].checkinLat).toBe('26.500000');
+    expect(list[0].checkinLng).toBe('103.100000');
+  });
+
   it('list 按 elder/assignee/状态筛选', async () => {
     const recordFindMany = vi.fn().mockResolvedValue([{ id: 'r1' }]);
     const { service } = makeService({ recordFindMany });

src/record/record.service.ts

@@ -267,11 +267,11 @@ export class RecordService {
       this.prisma.client.recordPhoto.findMany({ where: { recordId: id } }),
       this.prisma.client.recordAbnormal.findMany({ where: { recordId: id } }),
     ]);
-    return { ...record, items, photos, abnormals };
+    return this.serializeRecord({ ...record, items, photos, abnormals });
   }
 
   /** 列表：按老人/护理员/日期/状态筛选。 */
-  list(q: ListRecordQuery) {
+  async list(q: ListRecordQuery) {
     const where: Record<string, any> = {};
     if (q.elderId) where.elderId = q.elderId;
     if (q.assigneeId) where.assigneeId = q.assigneeId;
@@ -282,12 +282,14 @@ export class RecordService {
         lte: new Date(`${q.serviceDate}T23:59:59.999+08:00`),
       };
     }
-    return this.prisma.client.record.findMany({ where, orderBy: { checkinTime: 'desc' } });
+    const rows = await this.prisma.client.record.findMany({ where, orderBy: { checkinTime: 'desc' } });
+    return rows.map((r) => this.serializeRecord(r));
   }
 
   /** 垫付台账：按老人返回 is_prepaid=1 的记录。 */
-  prepaidList(q: PrepaidListQuery) {
+  async prepaidList(q: PrepaidListQuery) {
-    return this.prisma.client.record.findMany({ where: { elderId: q.elderId, isPrepaid: true } });
+    const rows = await this.prisma.client.record.findMany({ where: { elderId: q.elderId, isPrepaid: true } });
+    return rows.map((r) => this.serializeRecord(r));
   }
 
   /** 结转：复制垫付 record → 正式 record（is_prepaid=0 + source_prepaid_of），原记录不改。 */
@@ -387,6 +389,15 @@ export class RecordService {
     return record;
   }
 
+  /** Prisma Decimal 经 TransformInterceptor 不会转，泄漏为 {s,e,d}；返回前把坐标转字符串（null 保持 null）。 */
+  private serializeRecord(record: Record<string, any>): Record<string, any> {
+    return {
+      ...record,
+      checkinLat: record.checkinLat != null ? record.checkinLat.toString() : null,
+      checkinLng: record.checkinLng != null ? record.checkinLng.toString() : null,
+    };
+  }
+
   /** 校验 exec_result 枚举 + svc_id 落本机构 L4，并解析快照；photo_required 从 order.item_list 推导。 */
   private async resolveItems(items: RecordItemDto[], order?: Record<string, any> | null) {
     return Promise.all(