feat(cards): implement full saved card management and transparent checkout

- ApiCardModels.swift: SavedCard, SaveCardPayload, CreditCardOrderPayload, etc.
- ApiOrderModels.swift: add savedCardId, clientCpfCnpj, creditCard, creditCardHolderInfo to CreateOrderPayload; Codable for item/addon payloads
- ApiService.swift: listCards, saveCard, updateCard, deleteCard, updateProfileCpf
- AppState.ProfileState: add cpf field
- CheckoutView: CardSelectionSheet (list saved cards + add new), rewrite PaymentCardView (submits order with card data), CardPaymentContext carries full order data
- CheckoutView+Logic: buildCreateOrderPayload accepts card params, new loadSavedCards/confirmOrderWithSavedCard/handleOrderResponse helpers, redirect credit card confirm to CardSelectionSheet
- OrdersView: CREDIT_CARD pending orders go to tracking (not card form, since card is now submitted with order)
- UserProfileView: CPF field with mask, save via PATCH /api/customer/profile

pedi-foods/Sources/PediFoods/Services/ApiCardModels.swift

@@ -0,0 +1,67 @@
+import Foundation
+
+struct SavedCard: Decodable, Identifiable, Hashable {
+    let id: String
+    let nickname: String?
+    let holderName: String
+    let last4: String
+    let brand: String?
+    let expiryMonth: String
+    let expiryYear: String
+    let isDefault: Bool
+
+    var displayLabel: String {
+        if let nickname, nickname.isEmpty == false { return nickname }
+        let brandLabel = (brand ?? "Cartão").capitalized
+        return "\(brandLabel) •••• \(last4)"
+    }
+
+    var expiryLabel: String { "\(expiryMonth)/\(expiryYear)" }
+}
+
+struct SaveCardCreditCardPayload: Encodable {
+    let holderName: String
+    let number: String
+    let expiryMonth: String
+    let expiryYear: String
+    let ccv: String
+}
+
+struct SaveCardHolderInfoPayload: Encodable {
+    let name: String
+    let email: String
+    let cpfCnpj: String
+    let postalCode: String
+    let addressNumber: String
+    let phone: String
+}
+
+struct SaveCardPayload: Encodable {
+    let creditCard: SaveCardCreditCardPayload
+    let creditCardHolderInfo: SaveCardHolderInfoPayload
+    let nickname: String?
+    let isDefault: Bool
+}
+
+struct UpdateCardPayload: Encodable {
+    let nickname: String?
+    let isDefault: Bool?
+}
+
+struct SavedCardResult: Decodable {
+    let id: String
+    let holderName: String
+    let last4: String
+    let brand: String?
+    let expiryMonth: String
+    let expiryYear: String
+    let isDefault: Bool
+}
+
+struct CreditCardOrderPayload: Encodable {
+    let holderName: String
+    let number: String
+    let expiryMonth: String
+    let expiryYear: String
+    let ccv: String
+}