Update CloudSyncValidator tests for client-agnostic API design

Tests now expect no warning when remote format is null/empty,
matching the client-agnostic API behavior where format is
determined by the client, not the server.

Author: nickprotop

LocalizationManager.Tests/UnitTests/Cloud/CloudSyncValidatorTests.cs

@@ -543,33 +543,33 @@ public void SyncValidationResult_WithBothErrorAndWarning_CannotSync()
     #region Edge Cases
 
     [Fact]
-    public void ValidateForPush_EmptyRemoteFormat_ReturnsWarning()
+    public void ValidateForPush_EmptyRemoteFormat_AllowsSync()
     {
-        // Arrange
+        // Arrange - API is client-agnostic, format is determined by client
         var localConfig = new ConfigurationModel { ResourceFormat = "resx", DefaultLanguageCode = "en" };
         var remoteProject = new CloudProject { Format = "", DefaultLanguage = "en" };
 
         // Act
         var result = _validator.ValidateForPush(localConfig, remoteProject);
 
-        // Assert
-        Assert.True(result.CanSync); // Empty format is a warning, not an error
-        Assert.Contains(result.Warnings, w => w.Contains("Remote project format is not set"));
+        // Assert - No warning when format is empty (client-agnostic API design)
+        Assert.True(result.CanSync);
+        Assert.Empty(result.Warnings);
     }
 
     [Fact]
-    public void ValidateForPush_NullRemoteFormat_ReturnsWarning()
+    public void ValidateForPush_NullRemoteFormat_AllowsSync()
     {
-        // Arrange
+        // Arrange - API is client-agnostic, format is determined by client
         var localConfig = new ConfigurationModel { ResourceFormat = "resx", DefaultLanguageCode = "en" };
         var remoteProject = new CloudProject { Format = null!, DefaultLanguage = "en" };
 
         // Act
         var result = _validator.ValidateForPush(localConfig, remoteProject);
 
-        // Assert
+        // Assert - No warning when format is null (client-agnostic API design)
         Assert.True(result.CanSync);
-        Assert.Contains(result.Warnings, w => w.Contains("Remote project format is not set"));
+        Assert.Empty(result.Warnings);
     }
 
     [Fact]