feat: 新增用户信息更新功能

- 在APIEndpoints中新增用户信息更新端点。
- 实现UpdateUserRequest和UpdateUserResponse结构体，支持用户信息更新请求和响应。
- 在APIService中添加updateUser方法，处理用户信息更新请求。
- 更新AppSettingFeature以支持头像和昵称的修改，整合用户信息更新逻辑。
- 在AppSettingView中实现头像选择和昵称编辑功能，提升用户体验。

yana/Features/MainFeature.swift

@@ -2,11 +2,13 @@ import Foundation
 import ComposableArchitecture
 import CasePaths
 
-struct MainFeature: Reducer {
+@Reducer
+struct MainFeature {
     enum Tab: Int, Equatable, CaseIterable {
         case feed, other
     }
     
+    @ObservableState
     struct State: Equatable {
         var selectedTab: Tab = .feed
         var feedList: FeedListFeature.State = .init()
@@ -42,10 +44,10 @@ struct MainFeature: Reducer {
     }
     
     var body: some ReducerOf<Self> {
-        Scope(state: \.feedList, action: \.feedList) {
+        Scope(state: \ .feedList, action: \ .feedList) {
             FeedListFeature()
         }
-        Scope(state: \.me, action: \.me) {
+        Scope(state: \ .me, action: \ .me) {
             MeFeature()
         }
         Reduce { state, action in
@@ -104,7 +106,7 @@ struct MainFeature: Reducer {
             }
         }
         // 设置页作用域
-        .ifLet(\ .appSettingState, action: \.appSettingAction) {
+        .ifLet(\ .appSettingState, action: \ .appSettingAction) {
             AppSettingFeature()
         }
     }