feat(app): integrate Atomenta Feature Control bootstrap, cache and resume refresh

pedi-foods/Sources/PediFoods/State/AppState.swift

@@ -6,10 +6,64 @@ struct AppState {
     var cart = CartState()
     var address = AddressState()
     var favorites = FavoritesState()
+    var featureFlags = FeatureFlagsState()
     var homeFilters = HomeFiltersState()
     var activeModal: AppModal? = nil
 }
 
+enum FeatureFlagValue: Codable, Equatable {
+    case boolean(Bool)
+    case text(String)
+
+    init(from decoder: Decoder) throws {
+        let container = try decoder.singleValueContainer()
+        if let boolValue = try? container.decode(Bool.self) {
+            self = .boolean(boolValue)
+            return
+        }
+        if let stringValue = try? container.decode(String.self) {
+            self = .text(stringValue)
+            return
+        }
+        if let intValue = try? container.decode(Int.self) {
+            self = .text(String(intValue))
+            return
+        }
+        if let doubleValue = try? container.decode(Double.self) {
+            self = .text(String(doubleValue))
+            return
+        }
+        self = .text("off")
+    }
+
+    func encode(to encoder: Encoder) throws {
+        var container = encoder.singleValueContainer()
+        switch self {
+        case .boolean(let value):
+            try container.encode(value)
+        case .text(let value):
+            try container.encode(value)
+        }
+    }
+
+    var boolValue: Bool {
+        switch self {
+        case .boolean(let value):
+            return value
+        case .text(let value):
+            return value.lowercased() == "on" || value.lowercased() == "true"
+        }
+    }
+}
+
+struct FeatureFlagsState: Codable, Equatable {
+    var configVersion: Int = 0
+    var evaluatedAt: String? = nil
+    var source: String = "default"
+    var values: [String: FeatureFlagValue] = [:]
+    var raw: [String: FeatureControlRawFlag] = [:]
+}
+
 enum AppModal: String, Identifiable {
     case addressPicker
     case filters