feat: add postrequest script to save access_token in active environment

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

postman_collection.json

@@ -28,6 +28,29 @@
                   "}"
                 ]
               }
+            },
+            {
+              "listen": "postrequest",
+              "script": {
+                "type": "text/javascript",
+                "exec": [
+                  "// Comprobamos si la respuesta es exitosa",
+                  "if (pw.response.status === 200) {",
+                  "    // Si el body ya es un objeto no hace falta JSON.parse",
+                  "    const body = typeof pw.response.body === 'string'",
+                  "        ? JSON.parse(pw.response.body)",
+                  "        : pw.response.body;",
+                  "",
+                  "    if (body.access) {",
+                  "        // Guardamos el token en el entorno actual",
+                  "        pw.env.set(\"access_token\", body.access);",
+                  "        console.log(\"✅ Token guardado correctamente\");",
+                  "    } else {",
+                  "        console.log(\"❌ No se encontró el campo 'access' en la respuesta\");",
+                  "    }",
+                  "}"
+                ]
+              }
             }
           ],
           "request": {