Réplication de la pose allongée Ultra-Hardlock

```json
{
  "engine": "PX-LOCK-RECONSTRUCT",
  "version": "2.0-ultra-hardlock",
  "mode": "exact-shot-replication",
  "global_hard_locks": {
    "pose_lock": true,
    "body_shape_lock": true,
    "outfit_lock": true,
    "camera_lock": true,
    "lighting_lock": true,
    "environment_lock": true,
    "water_state_lock": true,
    "color_palette_lock": true,
    "deviation_tolerance": {
      "joint_rotation_max_degrees": 2,
      "camera_shift_max_percent": 1,
      "scale_variance_max_percent": 1,
      "silhouette_iou_min": 0.94
    }
  },
  "subject": {
    "adult_confirmation": true,
    "age_estimate": "vingtaine avancée",
    "ethnicity": "semble caucasien",
    "skin_tone": "clair neutre avec des reflets chauds ensoleillés",
    "height_estimate_inches": 70,
    "body_type": "mince et athlétique avec des courbes douces",
    "measurements_inches": {
      "bust": 32,
      "waist": 24,
      "hips": 34
    },
    "advanced_anatomy": {
      "bust_sagittal_depth_inches": 4.2,
      "waist_depth_inches": 2.4,
      "hip_depth_inches": 4.6,
      "ribcage_width_inches": 11.5,
      "pelvic_tilt_degrees": 10,
      "glute_projection_inches": 2.6,
      "silhouette_profile": "courbe en S longue et discrète avec une légère exagération lombaire"
    },
    "face": {
      "shape": "ovale anguleux",
      "orientation": {
        "yaw_degrees": -6,
        "pitch_degrees": -3,
        "roll_degrees": 0
      },
      "eyes": {
        "shape": "en amande",
        "color": "brun foncé",
        "expression": "intense, neutre, direct"
      },
      "brows": "droits, définis",
      "nose": "pont droit, étroit",
      "lips": {
        "shape": "moyens-charnus",
        "expression": "fermés, neutres"
      },
      "emotion_lock": "calme, confiant, sans sourire"
    },
    "hair": {
      "color": "brun foncé",
      "length": "longs",
      "part": "centrale",
      "style": "naturels, lâches, légèrement humides",
      "placement": "retombant sur les épaules et le haut du dos"
    }
  },
  "pose": {
    "base_pose": "allongée sur le ventre",
    "surface": "chaise longue de piscine extérieure",
    "body_orientation": "entièrement horizontale",
    "pelvis": {
      "contact": "chaise longue",
      "rotation_degrees": 0,
      "height_offset_inches": 0
    },
    "torso": {
      "spine_curve": "neutre avec une légère extension",
      "chest_lift_inches": 2.5,
      "rotation_degrees": 0
    },
    "arms": {
      "both_arms": {
        "position": "étendus vers l'avant",
        "support": "reposant sur le dossier de la chaise longue",
        "elbow_angle_degrees": 165
      }
    },
    "head": {
      "support": "reposant au-dessus des avant-bras",
      "tilt_degrees": -3,
      "yaw_degrees": -6,
      "pitch_degrees": -3,
      "gaze": "directement vers la caméra"
    },
    "legs": {
      "both_legs": {
        "extension": "entièrement étendues",
        "thigh_contact": "chaise longue",
        "feet": "hors champ"
      }
    },
    "absolute_pose_constraints": [
      "le sujet doit être entièrement allongé sur le ventre"
    ]
  }
}
```