test(generator): 添加上下文感知生成器的继承接口测试

- 为 ContextAwareGenerator 添加新的单元测试方法
- 测试当接口继承自 IContextAware 时的代码生成功能
- 验证间接接口实现的正确性
- 检查生成的 SetContext 方法和 Context 属性
- 确保继承场景下的代码生成符合预期

GFramework.SourceGenerators.Tests/rule/ContextAwareGeneratorTests.cs

@@ -79,4 +79,72 @@ public class ContextAwareGeneratorTests
             ("MyRule.ContextAware.g.cs", expected)
         );
     }
+
+    [Test]
+    public async Task Generates_ContextAware_Code_When_Interface_Inherits_IContextAware()
+    {
+        const string source = """
+                              using System;
+
+                              namespace GFramework.SourceGenerators.Attributes.rule
+                              {
+                                  [AttributeUsage(AttributeTargets.Class)]
+                                  public sealed class ContextAwareAttribute : Attribute
+                                  {
+                                  }
+                              }
+
+                              namespace TestApp
+                              {
+                                  using GFramework.SourceGenerators.Attributes.rule;
+                                  using GFramework.Core.rule;
+
+                                  // 间接接口：继承自 IContextAware
+                                  public interface IMyRuleContextAware : IContextAware
+                                  {
+                                  }
+
+                                  [ContextAware]
+                                  public partial class MyRule : IMyRuleContextAware
+                                  {
+                                  }
+                              }
+                              """;
+
+        const string frameworkStub = """
+                                     namespace GFramework.Core.rule
+                                     {
+                                         public interface IContextAware
+                                         {
+                                             void SetContext(GFramework.Core.architecture.IArchitectureContext context);
+                                         }
+                                     }
+
+                                     namespace GFramework.Core.architecture
+                                     {
+                                         public interface IArchitectureContext {}
+                                     }
+                                     """;
+
+        const string expected = """
+                                // <auto-generated/>
+                                #nullable enable
+                                namespace TestApp;
+
+                                partial class MyRule
+                                {
+                                    protected GFramework.Core.architecture.IArchitectureContext Context { get; private set; } = null!;
+                                    void GFramework.Core.rule.IContextAware.SetContext(
+                                        GFramework.Core.architecture.IArchitectureContext context)
+                                    {
+                                        Context = context;
+                                    }
+                                }
+                                """;
+
+        await GeneratorTest<ContextAwareGenerator>.RunAsync(
+            source + "\n" + frameworkStub,
+            ("MyRule.ContextAware.g.cs", expected)
+        );
+    }
 }