{
  "endpoint": "/api/weight-loss-estimator",
  "method": "GET",
  "description": "Calculates the weekly weight loss velocity and safety limits.",
  "parameters": {
    "currentWeightKg": { "type": "number", "required": true },
    "targetWeightKg": { "type": "number", "required": true },
    "weeklyLossGoalKg": { "type": "number", "minimum": 0.1, "maximum": 1.5, "required": true }
  },
  "sample_response": {
    "weeksToGoal": 14.0,
    "daysToGoal": 98,
    "monthlyLossForecastKg": 2.0
  }
}