Romance fotorrealista de Estambul con bloqueo de identidad

```json
{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "photoreal_modern_romance",
      "version": "v1.0_ISTANBUL_2026_FINAL",
      "priority": "highest"
    },
    "references": {
      "reference_image_female": { "source": "UPLOAD_REFERENCE_IMAGE", "purpose": "FACE_IDENTITY_LOCK_FEMALE", "strict_lock": true },
      "reference_image_male": { "source": "UPLOAD_REFERENCE_IMAGE", "purpose": "FACE_IDENTITY_LOCK_MALE", "strict_lock": true }
    },
    "creative_prompt": {
      "scene_summary": "Moderna {argument name=\"city\" default=\"Estambul\"}. Amor que sobrevivió a todas las épocas.",
      "pose_and_micro_action": "Sus manos se rozan mientras caminan. Esta vez, entrelazan los dedos.",
      "mood": "completo, eterno"
    }
  }
}
```