feat: migrar a useAuthentik y configurar CI/CD con Gitea Actions

- Migrar de useAuth() a useAuthentik() para autenticación SSR
- Actualizar componentes UserMenu, AppSidebar y profile.vue
- Configurar docker-compose.yml con variables dinámicas
- Agregar Gitea Actions workflow para build y deploy automático
- Implementar hook de monitoreo de Gitea Actions
- Configurar secrets y variables para deploy seguro
- Actualizar configuración de Traefik con Authentik Forward Auth

.env.example

@@ -4,5 +4,17 @@ SUPABASE_SERVICE_ROLE_KEY=your-service-role-key
 SUPABASE_ANON_KEY=your-anon-key
 
 # Authentik Configuration
-AUTHENTIK_URL=https://authentik.nucleoriofrio.com
-AUTHENTIK_APP_SLUG=your-app-slug
+NUXT_PUBLIC_AUTHENTIK_URL=https://authentik.nucleoriofrio.com
+
+# PostgreSQL Configuration
+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=your-secure-password
+POSTGRES_DB=analitica
+
+# PostgREST Configuration
+PGRST_DB_AUTHENTICATOR_PASSWORD=your-authenticator-password
+PGRST_DB_SCHEMA=public
+PGRST_DB_ANON_ROLE=web_anon
+PGRST_JWT_SECRET=your-jwt-secret-min-32-chars
+PGRST_OPENAPI_SERVER_PROXY_URI=https://api.analitica.nucleoriofrio.com
+NUXT_PUBLIC_POSTGREST_URL=https://api.analitica.nucleoriofrio.com