fix(sonar): give polymorphic base classes virtual destructors (cpp:S1235)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

global_include/interfaces/IMaterial.h

@@ -57,4 +57,5 @@ struct IMaterial
 		} null_material{};
 		return &null_material;
 	}
+	virtual ~IMaterial() = default;
 };

global_include/interfaces/ITexture.h

@@ -73,4 +73,5 @@ struct ITexture
 		} null_texture{};
 		return &null_texture;
 	}
+	virtual ~ITexture() = default;
 };