feat: Full redesign — glassmorphism, weekly charts, HealthKit sync, toast notifications

- DashboardView: полный редизайн с приветствием по времени суток, pull-to-refresh
- ReadinessCardView: анимированное кольцо, цветные факторы с иконками
- MetricCardView: glassmorphism карточки, градиентные иконки, SleepCard/StepsCard
- WeeklyChartView: bar chart (Sleep/HRV/Steps) без внешних библиотек
- ToastView: уведомления об успехе/ошибке с автоскрытием
- HealthKitService: полный сбор метрик + отправка на сервер
- HealthModels: HeatmapEntry для недельных данных
- Тёмная тема #0a0a1a, haptic feedback, анимации появления

PulseHealth/Models/HealthModels.swift

@@ -1,19 +1,85 @@
 import Foundation
+
 struct ReadinessResponse: Codable {
-    let score: Int; let status: String; let recommendation: String
-    let date: String?; let factors: ReadinessFactors?
+    let score: Int
+    let status: String
+    let recommendation: String
+    let date: String?
+    let factors: ReadinessFactors?
 }
+
 struct ReadinessFactors: Codable {
-    let sleep: FactorScore; let hrv: FactorScore; let rhr: FactorScore; let activity: FactorScore
+    let sleep: FactorScore
+    let hrv: FactorScore
+    let rhr: FactorScore
+    let activity: FactorScore
 }
-struct FactorScore: Codable { let score: Int; let value: String; let baseline: String? }
+
+struct FactorScore: Codable {
+    let score: Int
+    let value: String
+    let baseline: String?
+}
+
 struct LatestHealthResponse: Codable {
-    let sleep: SleepData?; let heartRate: HeartRateData?; let restingHeartRate: RestingHRData?
-    let hrv: HRVData?; let steps: StepsData?; let activeEnergy: EnergyData?
+    let sleep: SleepData?
+    let heartRate: HeartRateData?
+    let restingHeartRate: RestingHRData?
+    let hrv: HRVData?
+    let steps: StepsData?
+    let activeEnergy: EnergyData?
+}
+
+struct SleepData: Codable {
+    let totalSleep: Double?
+    let deep: Double?
+    let rem: Double?
+    let core: Double?
+}
+
+struct HeartRateData: Codable {
+    let avg: Int?
+    let min: Int?
+    let max: Int?
+}
+
+struct RestingHRData: Codable {
+    let value: Double?
+}
+
+struct HRVData: Codable {
+    let avg: Double?
+    let latest: Double?
+}
+
+struct StepsData: Codable {
+    let total: Int?
+}
+
+struct EnergyData: Codable {
+    let total: Int?
+    let units: String?
+}
+
+// MARK: - Heatmap / Weekly Data
+
+struct HeatmapEntry: Codable, Identifiable {
+    let date: String
+    let score: Int?
+    let steps: Int?
+    let sleep: Double?
+    let hrv: Double?
+    let rhr: Double?
+
+    var id: String { date }
+
+    var displayDate: String {
+        let parts = date.split(separator: "-")
+        guard parts.count == 3 else { return date }
+        return "\(parts[2]).\(parts[1])"
+    }
+}
+
+struct HeatmapResponse: Codable {
+    let data: [HeatmapEntry]
 }
-struct SleepData: Codable { let totalSleep: Double?; let deep: Double?; let rem: Double?; let core: Double? }
-struct HeartRateData: Codable { let avg: Int?; let min: Int?; let max: Int? }
-struct RestingHRData: Codable { let value: Double? }
-struct HRVData: Codable { let avg: Double?; let latest: Double? }
-struct StepsData: Codable { let total: Int? }
-struct EnergyData: Codable { let total: Int?; let units: String? }