fix: MudBlazor v8 compatibility, static asset conflict, deploy host domain

- fix CS0542: rename Users/Assets private members to _users/_assets
- fix CS0246: MudDialogInstance -> IMudDialogInstance
- fix AppTheme: PaletteLight/PaletteDark, string[] FontFamily, string typography values
- fix DataCollectionMonitoring: @(ticker.DataPointCount)개 Korean char parsing
- fix SchedulerService: add missing Hangfire namespaces, fix GetJobStatus return type
- fix Program.cs: move PostgreSQL setup above Hangfire registration
- fix ConfirmDialog: BackdropClick, Canceled spelling for MudBlazor v8
- fix static asset conflict: remove wwwroot/_framework from git tracking
- chore: add wwwroot/_framework/ to .gitignore
- ci: change DEPLOY_HOST from IP to quant.taxbaik.com domain

src/dotnet/QuantEngine.Web/Client/Pages/Users.razor

@@ -23,7 +23,7 @@
 
 <!-- Users Table -->
 <MudPaper Class="pa-4" Elevation="1">
-    @if (Users.Count == 0)
+    @if (_users.Count == 0)
     {
         <MudAlert Severity="Severity.Info">사용자가 없습니다.</MudAlert>
     }
@@ -75,14 +75,14 @@
 </MudPaper>
 
 @code {
-    private List<UserModel> Users = new();
+    private List<UserModel> _users = new();
     private string SearchQuery = "";
 
     private IEnumerable<UserModel> FilteredUsers
     {
         get => string.IsNullOrEmpty(SearchQuery)
-            ? Users
-            : Users.Where(u => u.Name.Contains(SearchQuery, StringComparison.OrdinalIgnoreCase) ||
+            ? _users
+            : _users.Where(u => u.Name.Contains(SearchQuery, StringComparison.OrdinalIgnoreCase) ||
                               u.Email.Contains(SearchQuery, StringComparison.OrdinalIgnoreCase));
     }
 
@@ -95,7 +95,7 @@
     {
         try
         {
-            Users = new List<UserModel>
+            _users = new List<UserModel>
             {
                 new UserModel
                 {