Adds ChangePortrait for User

src/Web/Features/Contents/Handlers/ChangeBanner.cs

@@ -9,11 +9,15 @@ public record ChangeBannerRequest(
     Guid CreatorId,
     IFormFile File);
 
+[PublicAPI]
+public record ChangeBannerResponse(
+    string BlobUrl);
+
 [PublicAPI]
 public class ChangeBannerHandler(
     ContentDbContext context,
     IBlobStorage blobStorage)
-    : Endpoint<ChangeBannerRequest>
+    : Endpoint<ChangeBannerRequest, ChangeBannerResponse>
 {
     public override void Configure()
     {
@@ -22,7 +26,9 @@ public class ChangeBannerHandler(
         AllowFileUploads();
     }
 
-    public override async Task HandleAsync(ChangeBannerRequest request, CancellationToken ct)
+    public override async Task HandleAsync(
+        ChangeBannerRequest request,
+        CancellationToken ct)
     {
         var creator = await context
             .Creators
@@ -49,6 +55,8 @@ public class ChangeBannerHandler(
 
         await context.SaveChangesAsync(ct);
 
-        await SendOkAsync(blobUrl, ct);
+        await SendOkAsync(
+            new ChangeBannerResponse(blobUrl),
+            ct);
     }
 }

src/Web/Features/Contents/Handlers/ChangeLogo.cs

@@ -9,6 +9,21 @@ public record ChangeLogoRequest(
     Guid CreatorId,
     IFormFile File);
 
+[PublicAPI]
+public sealed class ChangeLogoRequestValidator : Validator<ChangeLogoRequest>
+{
+    public ChangeLogoRequestValidator()
+    {
+        RuleFor(x => x.CreatorId)
+            .NotNull()
+            .NotEmpty();
+
+        RuleFor(x => x.File)
+            .NotNull()
+            .NotEmpty();
+    }
+}
+
 [PublicAPI]
 public class ChangeLogoHandler(
     ContentDbContext context,
@@ -22,7 +37,9 @@ public class ChangeLogoHandler(
         AllowFileUploads();
     }
 
-    public override async Task HandleAsync(ChangeLogoRequest request, CancellationToken ct)
+    public override async Task HandleAsync(
+        ChangeLogoRequest request,
+        CancellationToken ct)
     {
         var creator = await context
             .Creators