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/Finance/AddTransactionView.swift

@@ -5,19 +5,21 @@ struct AddTransactionView: View {
     @EnvironmentObject var authManager: AuthManager
     let categories: [FinanceCategory]
     let onAdded: () async -> Void
-    
+
     @State private var amount = ""
     @State private var description = ""
     @State private var type = "expense"
     @State private var selectedCategoryId: Int? = nil
+    @State private var date = Date()
     @State private var isLoading = false
+    @State private var errorMessage: String?
     
     var filteredCategories: [FinanceCategory] { categories.filter { $0.type == type } }
     var isExpense: Bool { type == "expense" }
     
     var body: some View {
         ZStack {
-            Color(hex: "0a0a1a").ignoresSafeArea()
+            Color(hex: "06060f").ignoresSafeArea()
             
             VStack(spacing: 0) {
                 // Handle
@@ -91,7 +93,16 @@ struct AddTransactionView: View {
                                 .foregroundColor(.white).padding(14)
                                 .background(RoundedRectangle(cornerRadius: 12).fill(Color.white.opacity(0.07)))
                         }
-                        
+
+                        // Date
+                        VStack(alignment: .leading, spacing: 8) {
+                            Label("Дата", systemImage: "calendar").font(.caption).foregroundColor(Color(hex: "8888aa"))
+                            DatePicker("", selection: $date, displayedComponents: .date)
+                                .labelsHidden()
+                                .colorInvert()
+                                .colorMultiply(Color(hex: "0D9488"))
+                        }
+
                         // Categories
                         if !filteredCategories.isEmpty {
                             VStack(alignment: .leading, spacing: 8) {
@@ -100,7 +111,7 @@ struct AddTransactionView: View {
                                     ForEach(filteredCategories) { cat in
                                         Button(action: { selectedCategoryId = selectedCategoryId == cat.id ? nil : cat.id }) {
                                             HStack(spacing: 6) {
-                                                Text(cat.icon ?? "").font(.callout)
+                                                Text(cat.emoji ?? "").font(.callout)
                                                 Text(cat.name).font(.caption).lineLimit(1)
                                             }
                                             .foregroundColor(selectedCategoryId == cat.id ? .black : .white)
@@ -115,21 +126,38 @@ struct AddTransactionView: View {
                                 }
                             }
                         }
+                        if let err = errorMessage {
+                            Text(err)
+                                .font(.caption).foregroundColor(Color(hex: "ff4757"))
+                                .padding(10)
+                                .frame(maxWidth: .infinity)
+                                .background(RoundedRectangle(cornerRadius: 10).fill(Color(hex: "ff4757").opacity(0.1)))
+                        }
                     }
                     .padding(20)
                 }
             }
         }
     }
-    
+
     func save() {
         guard let a = Double(amount.replacingOccurrences(of: ",", with: ".")) else { return }
         isLoading = true
+        errorMessage = nil
+        let df = DateFormatter(); df.dateFormat = "yyyy-MM-dd"
+        let dateStr = df.string(from: date)
         Task {
-            let req = CreateTransactionRequest(amount: a, categoryId: selectedCategoryId, description: description.isEmpty ? nil : description, type: type)
-            try? await APIService.shared.createTransaction(token: authManager.token, request: req)
-            await onAdded()
-            await MainActor.run { isPresented = false }
+            do {
+                let req = CreateTransactionRequest(amount: a, categoryId: selectedCategoryId, description: description.isEmpty ? nil : description, type: type, date: dateStr)
+                try await APIService.shared.createTransaction(token: authManager.token, request: req)
+                await onAdded()
+                await MainActor.run { isPresented = false }
+            } catch {
+                await MainActor.run {
+                    errorMessage = error.localizedDescription
+                    isLoading = false
+                }
+            }
         }
     }
 }