feat: savings tab, fix pull-to-refresh, beautiful modals, fix signing

PulseHealth/Models/SavingsModels.swift

@@ -0,0 +1,70 @@
+import Foundation
+
+struct SavingsCategory: Codable, Identifiable {
+    let id: Int
+    var name: String
+    var description: String?
+    var isDeposit: Bool?
+    var isCredit: Bool?
+    var isAccount: Bool?
+    var isRecurring: Bool?
+    var isMulti: Bool?
+    var isClosed: Bool?
+    var currentAmount: Double?
+    var depositAmount: Double?
+    var interestRate: Double?
+    var depositStartDate: String?
+    var depositEndDate: String?
+    var recurringAmount: Double?
+    
+    var icon: String {
+        if isDeposit == true { return "percent" }
+        if isAccount == true { return "building.columns.fill" }
+        if isRecurring == true { return "arrow.clockwise" }
+        return "banknote.fill"
+    }
+    
+    var color: String {
+        if isDeposit == true { return "ffa502" }
+        if isAccount == true { return "7c3aed" }
+        if isRecurring == true { return "00d4aa" }
+        return "8888aa"
+    }
+    
+    var typeLabel: String {
+        if isDeposit == true { return "Вклад \(Int(interestRate ?? 0))%" }
+        if isAccount == true { return "Счёт" }
+        if isRecurring == true { return "Накопления" }
+        return "Копилка"
+    }
+    
+    enum CodingKeys: String, CodingKey {
+        case id, name, description
+        case isDeposit = "is_deposit"
+        case isCredit = "is_credit"
+        case isAccount = "is_account"
+        case isRecurring = "is_recurring"
+        case isMulti = "is_multi"
+        case isClosed = "is_closed"
+        case currentAmount = "current_amount"
+        case depositAmount = "deposit_amount"
+        case interestRate = "interest_rate"
+        case depositStartDate = "deposit_start_date"
+        case depositEndDate = "deposit_end_date"
+        case recurringAmount = "recurring_amount"
+    }
+}
+
+struct SavingsStats: Codable {
+    var totalBalance: Double?
+    var totalDeposits: Double?
+    var totalWithdrawals: Double?
+    var categoriesCount: Int?
+    
+    enum CodingKeys: String, CodingKey {
+        case totalBalance = "total_balance"
+        case totalDeposits = "total_deposits"
+        case totalWithdrawals = "total_withdrawals"
+        case categoriesCount = "categories_count"
+    }
+}