fix(ops): 修复企微报告表零日期导致无法保存

早期 INSERT 未写 updated_at，MySQL 落成 0000-00-00，Prisma 读行失败。

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

@@ -61,6 +61,7 @@ type ReportRow = WecomReportPush;
 @Injectable()
 export class AdminWecomReportsService implements OnModuleInit {
   private readonly logger = new Logger(AdminWecomReportsService.name);
+  private defaultsReady = false;
 
   constructor(
     private readonly prisma: PrismaService,
@@ -77,11 +78,36 @@ export class AdminWecomReportsService implements OnModuleInit {
     }
   }
 
+  /**
+   * 早期 INSERT IGNORE 未写 updated_at，Prisma db push 的列又无默认值，
+   * MySQL 会落成 0000-00-00，后续 Prisma 读行即报 invalid datetime。
+   */
+  private async repairZeroDatetimes(): Promise<void> {
+    await this.prisma.$executeRawUnsafe(`
+      UPDATE wecom_report_push
+      SET created_at = CURRENT_TIMESTAMP(3)
+      WHERE CAST(created_at AS CHAR) REGEXP '^0000|-00-'
+    `);
+    await this.prisma.$executeRawUnsafe(`
+      UPDATE wecom_report_push
+      SET updated_at = CURRENT_TIMESTAMP(3)
+      WHERE CAST(updated_at AS CHAR) REGEXP '^0000|-00-'
+    `);
+    await this.prisma.$executeRawUnsafe(`
+      UPDATE wecom_report_push
+      SET last_sent_at = NULL
+      WHERE last_sent_at IS NOT NULL AND CAST(last_sent_at AS CHAR) REGEXP '^0000|-00-'
+    `);
+  }
+
   async ensureDefaults(): Promise<void> {
+    if (this.defaultsReady) return;
+    await this.repairZeroDatetimes();
     for (const seed of KIND_SEED) {
-      await this.prisma.wecomReportPush.upsert({
-        where: { kind: seed.kind },
-        create: {
+      const existing = await this.prisma.wecomReportPush.findUnique({ where: { kind: seed.kind } });
+      if (existing) continue;
+      await this.prisma.wecomReportPush.create({
+        data: {
           kind: seed.kind,
           name: seed.name,
           webhookUrl: WECOM_STORE_AUDIT_PLACEHOLDER_WEBHOOK,
@@ -91,9 +117,9 @@ export class AdminWecomReportsService implements OnModuleInit {
           sendWeekday: 1,
           sendMonthDay: 1,
         },
-        update: {},
       });
     }
+    this.defaultsReady = true;
   }
 
   parseKind(raw: string): WecomReportKind {