Restructure backend into modular API layers with admin/organizador/invitados routes, add role-based middleware, flatten module models, and update build scripts

packages/legacy/src/core/services/token.service.ts

@@ -0,0 +1,27 @@
+import { Injectable } from '@nestjs/common';
+import { v4 as uuidv4 } from 'uuid';
+import { AuthToken } from '../entities/token.entity';
+
+@Injectable()
+export class TokenService {
+  // En una implementación real esto debería usar el repositorio de MikroORM.
+  private tokens: AuthToken[] = [];
+
+  createToken(name?: string, expiresInHours?: number): AuthToken {
+    const token = new AuthToken();
+    token.token = uuidv4();
+    token.name = name;
+    if (expiresInHours) {
+      token.expiresAt = new Date(Date.now() + expiresInHours * 60 * 60 * 1000);
+    }
+    this.tokens.push(token);
+    return token;
+  }
+
+  validate(tokenString: string): AuthToken | null {
+    const token = this.tokens.find((t) => t.token === tokenString);
+    if (!token) return null;
+    if (token.expiresAt && token.expiresAt < new Date()) return null;
+    return token;
+  }
+}