feat: major app overhaul — API fixes, glassmorphism UI, health dashboard, notifications

API Integration:
- Fix logHabit: send "date" instead of "completed_at"
- Fix FinanceCategory: "icon" → "emoji" to match API
- Fix task priorities: remove level 4, keep 1-3 matching API
- Fix habit frequencies: map monthly/interval → "custom" for API
- Add token refresh (401 → auto retry with new token)
- Add proper error handling (remove try? in save functions, show errors in UI)
- Add date field to savings transactions
- Add MonthlyPaymentDetail and OverduePayment models
- Fix habit completedToday: compute on client from logs (API doesn't return it)
- Filter habits by day of week on client (daily/weekly/monthly/interval)

Design System (glassmorphism):
- New DesignSystem.swift: Theme colors, GlassCard modifier, GlowIcon, GlowStatCard
- Custom tab bar with per-tab glow colors (VStack layout, not ZStack overlay)
- Deep dark background #06060f across all views
- Glass cards with gradient fill + stroke throughout app
- App icon: glassmorphism style with teal glow

Health Dashboard:
- Compact ReadinessBanner with recommendation text
- 8 metric tiles: sleep, HR, HRV, steps, SpO2, respiratory rate, energy, distance
- Each tile with status indicator (good/ok/bad) and hint text
- Heart rate card (min/avg/max)
- Weekly trends card (averages)
- Recovery score (weighted: 40% sleep, 35% HRV, 25% RHR)
- Tips card with actionable recommendations
- Sleep detail view with hypnogram (step chart of phases)
- Sleep segments timeline from HealthKit (deep/rem/core/awake with exact times)
- Line chart replacing bar chart for weekly data
- Collect respiratory_rate and sleep phases with timestamps from HealthKit
- Background sync every ~30min via BGProcessingTask

Notifications:
- NotificationService for local push notifications
- Morning/evening reminders with native DatePicker (wheel)
- Payment reminders: 5 days, 1 day, and day-of for recurring savings
- Notification settings in Settings tab

UI Fixes:
- Fix color picker overflow: HStack → LazyVGrid 5 columns
- Fix sheet headers: shorter text, proper padding
- Fix task/habit toggle: separate tap zones (checkbox vs edit)
- Fix deprecated onChange syntax for iOS 17+
- Savings overview: real monthly payments and detailed overdues from API
- Settings: timezone as Menu picker, removed Telegram/server notifications sections
- All sheets use .presentationDetents([.large])

Config:
- project.yml: real DEVELOPMENT_TEAM, HealthKit + BackgroundModes capabilities
- Info.plist: BGTaskScheduler + UIBackgroundModes
- Assets.xcassets with AppIcon
- CLAUDE.md project documentation

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

PulseHealth/Views/Habits/AddHabitView.swift

@@ -32,21 +32,22 @@ struct AddHabitView: View {
 
     var body: some View {
         ZStack {
-            Color(hex: "0a0a1a").ignoresSafeArea()
+            Color(hex: "06060f").ignoresSafeArea()
             VStack(spacing: 0) {
                 RoundedRectangle(cornerRadius: 3)
                     .fill(Color.white.opacity(0.2)).frame(width: 40, height: 4).padding(.top, 12)
                 HStack {
-                    Button("Отмена") { isPresented = false }.foregroundColor(Color(hex: "8888aa"))
+                    Button("Отмена") { isPresented = false }
+                        .font(.callout).foregroundColor(Color(hex: "8888aa"))
                     Spacer()
                     Text("Новая привычка").font(.headline).foregroundColor(.white)
                     Spacer()
                     Button(action: save) {
-                        if isLoading { ProgressView().tint(Color(hex: "0D9488")).scaleEffect(0.8) }
-                        else { Text("Добавить").foregroundColor(name.isEmpty ? Color(hex: "8888aa") : Color(hex: "0D9488")).fontWeight(.semibold) }
+                        if isLoading { ProgressView().tint(Theme.teal).scaleEffect(0.8) }
+                        else { Text("Готово").font(.callout.bold()).foregroundColor(name.isEmpty ? Color(hex: "8888aa") : Theme.teal) }
                     }.disabled(name.isEmpty || isLoading)
                 }
-                .padding(.horizontal, 20).padding(.vertical, 16)
+                .padding(.horizontal, 16).padding(.vertical, 14)
                 Divider().background(Color.white.opacity(0.1))
                 ScrollView {
                     VStack(spacing: 20) {
@@ -144,7 +145,7 @@ struct AddHabitView: View {
                         // Color picker
                         VStack(alignment: .leading, spacing: 8) {
                             Label("Цвет", systemImage: "paintpalette").font(.caption).foregroundColor(Color(hex: "8888aa"))
-                            HStack(spacing: 10) {
+                            LazyVGrid(columns: Array(repeating: GridItem(.flexible()), count: 5), spacing: 10) {
                                 ForEach(colors, id: \.self) { color in
                                     Button(action: { selectedColor = color }) {
                                         Circle()
@@ -166,10 +167,11 @@ struct AddHabitView: View {
     func save() {
         isLoading = true
         Task {
+            let apiFrequency = (frequency == "interval" || frequency == "monthly") ? "custom" : frequency
             var body: [String: Any] = [
                 "name": name,
                 "description": description,
-                "frequency": frequency,
+                "frequency": apiFrequency,
                 "icon": selectedIcon,
                 "color": selectedColor,
                 "target_count": 1