notification overhaul

lib/models/nutrient.dart

@@ -1,87 +0,0 @@
-
-
-class Nutrient {
-  final String name;
-  final String unit;
-  final String rdaType;
-  final String? note;
-  final UpperLimit? ul; // nutrient-level UL (optional)
-  final List<LifeStage> lifeStages;
-
-  Nutrient({
-    required this.name,
-    required this.unit,
-    required this.rdaType,
-    this.note,
-    this.ul,
-    required this.lifeStages,
-  });
-
-  factory Nutrient.fromJson(String name, Map<String, dynamic> json) {
-    return Nutrient(
-      name: name,
-      unit: json['unit'],
-      rdaType: json['rda_type'],
-      note: json['note'],
-      ul: (json['ul'] is Map<String, dynamic>) ? UpperLimit.fromJson(json['ul'] as Map<String, dynamic>) : null,
-      lifeStages: (json['life_stages'] as List)
-          .map((stage) => LifeStage.fromJson(stage))
-          .toList(),
-    );
-  }
-}
-
-class LifeStage {
-  final String ageRange;
-  final String sex;
-  final double value;
-  final double? valueMin;
-  final double? valueMax;
-  final double? ul;
-  final String? description;
-
-  LifeStage({
-    required this.ageRange,
-    required this.sex,
-    required this.value,
-    this.valueMin,
-    this.valueMax,
-    this.ul,
-    this.description,
-  });
-
-  factory LifeStage.fromJson(Map<String, dynamic> json) {
-    return LifeStage(
-      ageRange: json['age_range'],
-      sex: json['sex'],
-      value: (json['value'] as num?)?.toDouble() ?? 0.0,
-      valueMin: json['value_min'] != null ? (json['value_min'] as num).toDouble() : null,
-      valueMax: json['value_max'] != null ? (json['value_max'] as num).toDouble() : null,
-      ul: json['ul'] != null ? (json['ul'] as num).toDouble() : null,
-      description: json['description'],
-    );
-  }
-}
-
-class UpperLimit {
-  final double value;
-  final String unit;
-  final String? duration;
-  final String? note;
-
-  const UpperLimit({
-    required this.value,
-    required this.unit,
-    this.duration,
-    this.note,
-  });
-
-  factory UpperLimit.fromJson(Map<String, dynamic> json) {
-    return UpperLimit(
-      value: (json['value'] as num).toDouble(),
-      unit: json['unit'] ?? '',
-      duration: json['duration'],
-      note: json['note'],
-    );
-  }
-}