feat: add Warehouses + Integrations modules, /admin/configuracion page

- Schema v0.3: Warehouse + Integration models (db push applied)
- WarehousesModule: CRUD, set-default, multi-warehouse support
- IntegrationsModule: 26 keys across 7 groups (payment, notifications,
  customs, courier, marketplace, compliance, warehouse)
- AuthService: suite address pulled from default Warehouse in DB (env fallback)
- AuthModule: imports WarehousesModule
- Seed: creates default warehouse from WAREHOUSE_ADDRESS_* env vars
- Web: /admin/configuracion page (3 tabs: Bodegas, Integraciones, Estado APIs)
- Web: admin layout adds Configuracion nav link
- api.ts: warehouses + integrations client methods

apps/api/src/app.module.ts

@@ -14,6 +14,8 @@ import { AuditLogModule } from "./audit-log/audit-log.module";
 import { NotificationsModule } from "./notifications/notifications.module";
 import { TariffsModule } from "./tariffs/tariffs.module";
 import { ProductsModule } from "./products/products.module";
+import { WarehousesModule } from "./warehouses/warehouses.module";
+import { IntegrationsModule } from "./integrations/integrations.module";
 
 @Module({
   imports: [
@@ -35,6 +37,8 @@ import { ProductsModule } from "./products/products.module";
     NotificationsModule,
     TariffsModule,
     ProductsModule,
+    WarehousesModule,
+    IntegrationsModule,
   ],
 })
 export class AppModule {}