Add E2E and ZSCustomOverworld test suites for comprehensive testing

- Introduced new E2E test suite for comprehensive ROM testing, validating the complete ROM editing workflow.
- Added ZSCustomOverworld test suite to validate version upgrades and data integrity.
- Updated `EditorManager` to register the new test suites.
- Enhanced CMake configuration to include the new test files.
- Updated README to reflect the new testing capabilities and best practices for AI agent testing.

src/app/editor/editor_manager.cc

@@ -30,6 +30,8 @@
 #include "app/test/test_manager.h"
 #include "app/test/integrated_test_suite.h"
 #include "app/test/rom_dependent_test_suite.h"
+#include "app/test/e2e_test_suite.h"
+#include "app/test/zscustomoverworld_test_suite.h"
 #ifdef YAZE_ENABLE_GTEST
 #include "app/test/unit_test_suite.h"
 #endif
@@ -160,6 +162,10 @@ void EditorManager::InitializeTestSuites() {
   test_manager.RegisterTestSuite(std::make_unique<test::UITestSuite>());
   test_manager.RegisterTestSuite(std::make_unique<test::RomDependentTestSuite>());
   
+  // Register new E2E and ZSCustomOverworld test suites
+  test_manager.RegisterTestSuite(std::make_unique<test::E2ETestSuite>());
+  test_manager.RegisterTestSuite(std::make_unique<test::ZSCustomOverworldTestSuite>());
+  
   // Register Google Test suite if available
 #ifdef YAZE_ENABLE_GTEST
   test_manager.RegisterTestSuite(std::make_unique<test::UnitTestSuite>());