Initial commit: sap-intercompany-api

Backend NestJS + Prisma, dueno de la configuracion del worker
(databases, scenarios, scenario_destinations, value_mappings) y
lectura de webhook_events / replication_attempts.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/dashboard/dashboard.controller.ts

@@ -0,0 +1,12 @@
+import { Controller, Get, Inject } from '@nestjs/common';
+import { DashboardService } from './dashboard.service.ts';
+
+@Controller('dashboard')
+export class DashboardController {
+  constructor(@Inject(DashboardService) private readonly dashboard: DashboardService) {}
+
+  @Get('stats')
+  getStats() {
+    return this.dashboard.getStats();
+  }
+}