fix: apply clang-format and exclude third-party libraries from formatting checks

- Applied clang-format to fix formatting violations in TUI and other source files
- Updated CMakeLists.txt to exclude src/lib/* from format targets to prevent third-party library violations
- Fixes clang-format violations in chat_tui.cc, tui.cc, and unified_layout.cc
- All source files now pass format-check target

🤖 Generated with Claude Code

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

test/e2e/rom_dependent/e2e_rom_test.cc

@@ -1,4 +1,5 @@
 #include <gtest/gtest.h>
+
 #include <filesystem>
 #include <fstream>
 #include <memory>
@@ -14,7 +15,7 @@ namespace test {
 
 /**
  * @brief Comprehensive End-to-End ROM testing suite
- * 
+ *
  * This test suite validates the complete ROM editing workflow:
  * 1. Load vanilla ROM
  * 2. Apply various edits (ROM data, graphics, etc.)