feat: update auth service to provision databases via TenantConnectionManager

- Replace createTenantSchema with tenantDb.provisionDatabase
- JWT payload now includes databaseName (already renamed from schemaName)

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

apps/api/src/services/auth.service.ts

@@ -1,7 +1,6 @@
-import { prisma } from '../config/database.js';
+import { prisma, tenantDb } from '../config/database.js';
 import { hashPassword, verifyPassword } from '../utils/password.js';
 import { generateAccessToken, generateRefreshToken, verifyToken } from '../utils/token.js';
-import { createTenantSchema } from '../utils/schema-manager.js';
 import { AppError } from '../middlewares/error.middleware.js';
 import { PLANS } from '@horux/shared';
 import type { LoginRequest, RegisterRequest, LoginResponse } from '@horux/shared';
@@ -23,7 +22,8 @@ export async function register(data: RegisterRequest): Promise<LoginResponse> {
     throw new AppError(400, 'El RFC ya está registrado');
   }
 
-  const databaseName = `horux_${data.empresa.rfc.toLowerCase().replace(/[^a-z0-9]/g, '')}`;
+  // Provision a dedicated database for this tenant
+  const databaseName = await tenantDb.provisionDatabase(data.empresa.rfc);
 
   const tenant = await prisma.tenant.create({
     data: {
@@ -36,8 +36,6 @@ export async function register(data: RegisterRequest): Promise<LoginResponse> {
     },
   });
 
-  await createTenantSchema(databaseName);
-
   const passwordHash = await hashPassword(data.usuario.password);
   const user = await prisma.user.create({
     data: {