feat: full Pulse Mobile implementation - all modules

- Phase 0: project.yml fixes (CODE_SIGN_ENTITLEMENTS confirmed)
- Phase 1: Enhanced models (HabitModels, TaskModels, FinanceModels, SavingsModels, UserModels)
- Phase 1: Enhanced APIService with all endpoints (habits/log/stats, tasks/uncomplete, finance/analytics, savings/*)
- Phase 2: DashboardView rewrite - day progress bar, 4 stat cards, habit/task lists with Undo (3 sec)
- Phase 3: TrackerView - HabitListView (streak badge, swipe delete, archive), TaskListView (priority, overdue), StatisticsView (heatmap 84 days, line chart, bar chart via Swift Charts)
- Phase 4: FinanceView rewrite - month picker, summary card, top expenses progress bars, pie chart, line chart, transactions by day, analytics tab with bar chart + month comparison
- Phase 5: SavingsView rewrite - overview with overdue block, categories tab with type icons, operations tab with category filter + add sheet
- Phase 6: SettingsView - dark/light theme, profile edit, telegram chat id, notifications toggle + time, timezone picker, logout
- Added: AddHabitView with weekly day selector + interval days
- Added: AddTaskView with icon/color/due date picker
- Haptic feedback on all toggle actions

PulseHealth/Models/TaskModels.swift

@@ -1,5 +1,7 @@
 import Foundation
 
+// MARK: - PulseTask
+
 struct PulseTask: Codable, Identifiable {
     let id: Int
     var title: String
@@ -11,6 +13,9 @@ struct PulseTask: Codable, Identifiable {
     var dueDate: String?
     var reminderTime: String?
     var createdAt: String?
+    var isRecurring: Bool?
+    var recurrenceType: String?
+    var recurrenceInterval: Int?
 
     var priorityColor: String {
         switch priority {
@@ -31,22 +36,80 @@ struct PulseTask: Codable, Identifiable {
         }
     }
 
+    var isOverdue: Bool {
+        guard !completed, let due = dueDate else { return false }
+        let dateStr = String(due.prefix(10))
+        let today = ISO8601DateFormatter().string(from: Date()).prefix(10)
+        return dateStr < today
+    }
+
+    var dueDateFormatted: String? {
+        guard let due = dueDate else { return nil }
+        let dateStr = String(due.prefix(10))
+        let todayStr = String(ISO8601DateFormatter().string(from: Date()).prefix(10))
+        let tomorrowDate = Calendar.current.date(byAdding: .day, value: 1, to: Date())!
+        let tomorrowStr = String(ISO8601DateFormatter().string(from: tomorrowDate).prefix(10))
+        if dateStr == todayStr { return "Сегодня" }
+        if dateStr == tomorrowStr { return "Завтра" }
+        let parts = dateStr.split(separator: "-")
+        guard parts.count == 3 else { return dateStr }
+        return "\(parts[2]).\(parts[1]).\(parts[0])"
+    }
+
     enum CodingKeys: String, CodingKey {
         case id, title, description, completed, priority, icon, color
         case dueDate = "due_date"
         case reminderTime = "reminder_time"
         case createdAt = "created_at"
+        case isRecurring = "is_recurring"
+        case recurrenceType = "recurrence_type"
+        case recurrenceInterval = "recurrence_interval"
     }
 }
 
+// MARK: - TaskStats
+
+struct TaskStats: Codable {
+    let totalTasks: Int?
+    let completedTasks: Int?
+    let todayTasks: Int?
+    let todayCompleted: Int?
+
+    enum CodingKeys: String, CodingKey {
+        case totalTasks = "total_tasks"
+        case completedTasks = "completed_tasks"
+        case todayTasks = "today_tasks"
+        case todayCompleted = "today_completed"
+    }
+}
+
+// MARK: - CreateTaskRequest
+
 struct CreateTaskRequest: Codable {
     var title: String
     var description: String?
     var priority: Int?
     var dueDate: String?
+    var icon: String?
+    var color: String?
 
     enum CodingKeys: String, CodingKey {
-        case title, description, priority
+        case title, description, priority, icon, color
+        case dueDate = "due_date"
+    }
+}
+
+// MARK: - UpdateTaskRequest
+
+struct UpdateTaskRequest: Codable {
+    var title: String?
+    var description: String?
+    var priority: Int?
+    var dueDate: String?
+    var completed: Bool?
+
+    enum CodingKeys: String, CodingKey {
+        case title, description, priority, completed
         case dueDate = "due_date"
     }
 }