Fix issue: JsonbExpressionParser did not translate property names to camelCase in jsonb expressions.

Author: runemalm

src/OpenDDD.Tests/Unit/Infrastructure/Persistence/OpenDdd/Expressions/JsonbExpressionParserTests.cs

@@ -1,4 +1,6 @@
-using System.Linq.Expressions;
+using System;
+using System.Linq.Expressions;
+using Xunit;
 using FluentAssertions;
 using OpenDDD.Infrastructure.Persistence.OpenDdd.Expressions;
 using OpenDDD.Tests.Base;
@@ -102,7 +104,7 @@ public void Parse_ShouldGenerateSql_ForNullablePropertyCheck()
             Expression<Func<Customer, bool>> expression = c => c.MiddleName != null;
             var result = JsonbExpressionParser.Parse(expression);
 
-            result.Should().Be("data ? 'middlename'");
+            result.Should().Be("data ? 'middleName'");
         }
 
         [Fact]
@@ -111,7 +113,7 @@ public void Parse_ShouldGenerateSql_ForBooleanProperty()
             Expression<Func<Customer, bool>> expression = c => c.IsActive;
             var result = JsonbExpressionParser.Parse(expression);
 
-            result.Should().Be("(data->>'isactive')::boolean = TRUE");
+            result.Should().Be("(data->>'isActive')::boolean = TRUE");
         }
 
         [Fact]

src/OpenDDD/Infrastructure/Persistence/OpenDdd/Expressions/JsonbExpressionParser.cs

@@ -180,7 +180,7 @@ private static string GetJsonbPath(MemberExpression expression)
 
             while (current is MemberExpression member)
             {
-                properties.Insert(0, member.Member.Name.ToLower()); // Insert at start to preserve order
+                properties.Insert(0, char.ToLowerInvariant(member.Member.Name[0]) + member.Member.Name[1..]);
                 current = member.Expression;
             }