fix: set default actor isolation to nonisolated, added primary models…

Stream-iOS/Stream-iOS.xcodeproj/project.pbxproj

@@ -355,7 +355,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
 				SWIFT_APPROACHABLE_CONCURRENCY = YES;
-				SWIFT_DEFAULT_ACTOR_ISOLATION = MainActor;
+				SWIFT_DEFAULT_ACTOR_ISOLATION = nonisolated;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
 				SWIFT_VERSION = 6.0;
@@ -389,7 +389,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
 				SWIFT_APPROACHABLE_CONCURRENCY = YES;
-				SWIFT_DEFAULT_ACTOR_ISOLATION = MainActor;
+				SWIFT_DEFAULT_ACTOR_ISOLATION = nonisolated;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
 				SWIFT_VERSION = 6.0;

Stream-iOS/Stream-iOS/Core/Models/CharacterDTO.swift

@@ -0,0 +1,27 @@
+//
+//  CharacterDTO.swift
+//  Stream-iOS
+//
+//  Created by Ullash Podder on 14/07/2026.
+//
+import Foundation
+
+struct CharacterDTO: Decodable, Sendable, Identifiable {
+    let id: Int
+    let name: String
+    let status: CharacterStatus
+    let species: String
+    let gender: String
+    let image: URL
+}
+
+enum CharacterStatus: String, Decodable, Sendable {
+    case alive = "Alive"
+    case dead = "Dead"
+    case unknown
+
+    init(from decoder: Decoder) throws {
+        let raw = try decoder.singleValueContainer().decode(String.self)
+        self = CharacterStatus(rawValue: raw) ?? .unknown
+    }
+}

Stream-iOS/Stream-iOS/Core/Models/PagedResponse.swift

@@ -0,0 +1,20 @@
+//
+//  PagedResponse.swift
+//  Stream-iOS
+//
+//  Created by Ullash Podder on 14/07/2026.
+//
+
+import Foundation
+struct PagedResponse<T: Decodable & Sendable>: Decodable, Sendable {
+    let info: PageInfo
+    let results: [T]
+}
+
+struct PageInfo: Decodable, Sendable {
+    let count: Int
+    let pages: Int
+    let next: URL?
+    let prev: URL?
+}
+

Stream-iOS/Stream-iOSTests/CharacterDecodingTests.swift

@@ -0,0 +1,44 @@
+//
+//  CharacterDecodingTests.swift
+//  Stream-iOS
+//
+//  Created by Ullash Podder on 14/07/2026.
+//
+
+import Testing
+import Foundation
+@testable import Stream_iOS
+
+struct CharacterDecodingTests {
+
+    @Test func decodesPagedResponseFromFixture() throws {
+        let data = try Fixture.load("character_page1")
+        let response = try JSONDecoder().decode(PagedResponse<CharacterDTO>.self, from: data)
+
+        #expect(response.info.count == 826)
+        #expect(response.info.pages == 42)
+        #expect(response.results.count == 20)
+        #expect(response.info.next != nil)
+        #expect(response.info.prev == nil)
+    }
+
+    @Test func decodesFirstCharacterCorrectly() throws {
+        let data = try Fixture.load("character_page1")
+        let response = try JSONDecoder().decode(PagedResponse<CharacterDTO>.self, from: data)
+        let rick = try #require(response.results.first)
+
+        #expect(rick.id == 1)
+        #expect(rick.name == "Rick Sanchez")
+        #expect(rick.status == .alive)
+        #expect(rick.species == "Human")
+        #expect(rick.image.absoluteString.hasSuffix("/avatar/1.jpeg"))
+    }
+
+    @Test func decodesUnknownStatusAsFallback() throws {
+        let json = #"{"id":1,"name":"X","status":"Martian","species":"Y","gender":"Male","image":"https://a.com/1.jpeg"}"#
+        let dto = try JSONDecoder().decode(CharacterDTO.self, from: Data(json.utf8))
+
+        #expect(dto.status == .unknown)
+    }
+}
+

Stream-iOS/Stream-iOSTests/Fixtures/Fixture.swift

@@ -0,0 +1,22 @@
+//
+//  Fixture.swift
+//  Stream-iOS
+//
+//  Created by Ullash Podder on 14/07/2026.
+//
+
+import Foundation
+
+enum Fixture {
+    enum Error: Swift.Error { case notFound(String) }
+
+    static func load(_ name: String) throws -> Data {
+        let bundle = Bundle(for: BundleToken.self)
+        guard let url = bundle.url(forResource: name, withExtension: "json") else {
+            throw Error.notFound(name)
+        }
+        return try Data(contentsOf: url)
+    }
+
+    private final class BundleToken {}
+}