first commit

src/config/prisma-master.service.ts

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+import { Injectable, OnModuleDestroy, OnModuleInit } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { PrismaClient } from '@prisma/client';
+
+/**
+ * Conectada via `DATABASE_URL_MASTER` (role `app_master`, LOGIN + BYPASSRLS).
+ * Usada pelo painel master, que precisa enxergar dados de todos os tenants
+ * sem passar pelas policies de RLS.
+ */
+@Injectable()
+export class PrismaMasterService extends PrismaClient implements OnModuleInit, OnModuleDestroy {
+  constructor(configService: ConfigService) {
+    super({
+      datasourceUrl:
+        configService.get<string>('DATABASE_URL_MASTER') ??
+        configService.get<string>('DATABASE_URL'),
+    });
+  }
+
+  async onModuleInit() {
+    await this.$connect();
+  }
+
+  async onModuleDestroy() {
+    await this.$disconnect();
+  }
+}