fix: resolve all build warnings

- Change navigation property setters from 'private set' to 'init' for EF Core entities (fixes S1144)
  - GroupRole.cs: Group, Role properties
  - PasswordHistory.cs: Id, User properties
  - UserGroup.cs: User, Group properties
  - UserSession.cs: User property
- Add await to InvokeAsync(StateHasChanged) calls in PlaygroundLayout.razor (fixes CS4014)

Build now completes with 0 warnings, 0 errors.

Author: jarvis

src/Modules/Identity/Modules.Identity/Domain/GroupRole.cs

@@ -5,9 +5,9 @@ public class GroupRole
     public Guid GroupId { get; private set; }
     public string RoleId { get; private set; } = default!;
 
-    // Navigation properties
-    public virtual Group? Group { get; private set; }
-    public virtual FshRole? Role { get; private set; }
+    // Navigation properties (init for EF Core materialization)
+    public virtual Group? Group { get; init; }
+    public virtual FshRole? Role { get; init; }
 
     private GroupRole() { } // EF Core
 

src/Modules/Identity/Modules.Identity/Domain/PasswordHistory.cs

@@ -2,13 +2,13 @@ namespace FSH.Modules.Identity.Domain;
 
 public class PasswordHistory
 {
-    public int Id { get; private set; }
+    public int Id { get; init; }
     public string UserId { get; private set; } = default!;
     public string PasswordHash { get; private set; } = default!;
     public DateTime CreatedAt { get; private set; }
 
-    // Navigation property
-    public virtual FshUser? User { get; private set; }
+    // Navigation property (init for EF Core materialization)
+    public virtual FshUser? User { get; init; }
 
     private PasswordHistory() { } // EF Core
 

src/Modules/Identity/Modules.Identity/Domain/UserGroup.cs

@@ -7,9 +7,9 @@ public class UserGroup
     public DateTime AddedAt { get; private set; }
     public string? AddedBy { get; private set; }
 
-    // Navigation properties
-    public virtual FshUser? User { get; private set; }
-    public virtual Group? Group { get; private set; }
+    // Navigation properties (init for EF Core materialization)
+    public virtual FshUser? User { get; init; }
+    public virtual Group? Group { get; init; }
 
     private UserGroup() { } // EF Core
 

src/Modules/Identity/Modules.Identity/Domain/UserSession.cs

@@ -20,8 +20,8 @@ public class UserSession
     public string? RevokedBy { get; private set; }
     public string? RevokedReason { get; private set; }
 
-    // Navigation property
-    public virtual FshUser? User { get; private set; }
+    // Navigation property (init for EF Core materialization)
+    public virtual FshUser? User { get; init; }
 
     private UserSession() { } // EF Core
 

src/Playground/Playground.Blazor/Components/Layout/PlaygroundLayout.razor

@@ -182,7 +182,7 @@ else
             _isDarkMode = TenantThemeState.IsDarkMode;
             _logoUrl = _isDarkMode ? TenantThemeState.Current.BrandAssets.LogoDarkUrl : TenantThemeState.Current.BrandAssets.LogoUrl;
 
-            InvokeAsync(StateHasChanged);
+            await InvokeAsync(StateHasChanged);
         }
         else if (wasAuthenticated && !_isAuthenticated)
         {
@@ -192,7 +192,7 @@ else
             _isDarkMode = false;
             _logoUrl = null;
             await ApplyFaviconAsync(); // reset to default
-            InvokeAsync(StateHasChanged);
+            await InvokeAsync(StateHasChanged);
         }
     }