基于 Lottie 在关键流程中新增全局 Loading 遮罩

引入带引用计数的 GlobalLoadingCenter，通过 RootView 及主要登录/订单/个人中心页面接入，并添加 Loading 动画资源与单元测试。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkan/Features/Profile/Views/ProfileView.swift

@@ -21,6 +21,7 @@ struct ProfileView: View {
     @Environment(OSSUploadService.self) private var ossUploadService
     @Environment(ToastCenter.self) private var toastCenter
     @Environment(AuthSessionCoordinator.self) private var authSessionCoordinator
+    @Environment(\.globalLoading) private var globalLoading
     @Environment(\.horizontalSizeClass) private var horizontalSizeClass
 
     @State private var viewModel = ProfileViewModel()
@@ -73,14 +74,6 @@ struct ProfileView: View {
             }
             Button("取消", role: .cancel) {}
         }
-        .overlay {
-            if viewModel.isLoading && viewModel.userInfo == nil {
-                ProgressView()
-                    .controlSize(.large)
-                    .frame(maxWidth: .infinity, maxHeight: .infinity)
-                    .background(Color.white.opacity(0.35))
-            }
-        }
         .onChange(of: viewModel.isEditingProfile) { _, isEditing in
             guard isEditing else { return }
             DispatchQueue.main.asyncAfter(deadline: .now() + 0.15) {
@@ -512,7 +505,9 @@ struct ProfileView: View {
     /// 重新拉取个人资料，并同步更新全局账号资料。
     private func reloadProfile(showToast: Bool) async {
         do {
-            try await viewModel.reload(api: profileAPI)
+            try await globalLoading.withOptionalLoading(!showToast && viewModel.userInfo == nil, message: "加载中...") {
+                try await viewModel.reload(api: profileAPI)
+            }
             if let userInfo = viewModel.userInfo {
                 authSessionCoordinator.refreshCachedProfile(from: userInfo, accountContext: accountContext)
             } else {
@@ -531,11 +526,13 @@ struct ProfileView: View {
     /// 保存昵称编辑内容，并在成功后刷新全局账号展示。
     private func saveProfileEdits() async {
         do {
-            try await viewModel.saveProfile(
-                api: profileAPI,
-                uploader: ossUploadService,
-                scenicId: accountContext.currentScenic?.id ?? 0
-            )
+            try await globalLoading.withLoading(message: "保存中...") {
+                try await viewModel.saveProfile(
+                    api: profileAPI,
+                    uploader: ossUploadService,
+                    scenicId: accountContext.currentScenic?.id ?? 0
+                )
+            }
             if let userInfo = viewModel.userInfo {
                 authSessionCoordinator.refreshCachedProfile(from: userInfo, accountContext: accountContext)
             } else {