GET /api/v1/niches

{
  "niches": [
    {
      "id": "curtains",
      "name": "Cortinas",
      "description": "Diseña cortinas de lamas verticales u horizontales con patrones personalizados a partir de cualquier imagen.",
      "unit_name": "eslabon",
      "unit_name_plural": "eslabones",
      "row_name": "lama",
      "row_name_plural": "lamas",
      "defaults": {
        "unit_width_cm": 1.5,
        "unit_height_cm": 2.0
      },
      "constraints": {
        "min_width_cm": 10,
        "max_width_cm": 1000,
        "min_colors": 2,
        "max_colors": 15
      }
    },
    {
      "id": "mosaics",
      "name": "Mosaicos",
      "description": "Crea mosaicos de azulejos o teselas de colores a partir de cualquier imagen.",
      "unit_name": "tesela",
      "unit_name_plural": "teselas",
      "defaults": {
        "unit_width_cm": 2.0,
        "unit_height_cm": 2.0
      },
      "constraints": {
        "min_width_cm": 10,
        "max_width_cm": 1000,
        "min_colors": 2,
        "max_colors": 18
      }
    }
  ]
}