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/integration/zelda3/sprite_position_test.cc

@@ -1,4 +1,5 @@
 #include <gtest/gtest.h>
+
 #include <fstream>
 #include <iomanip>
 #include <iostream>
@@ -125,7 +126,6 @@ TEST_F(SpritePositionTest, MapCoordinateCalculations) {
       if (!sprite.deleted() &&
           sprite.map_id() < 0x40 + (current_world * 0x40) &&
           sprite.map_id() >= (current_world * 0x40)) {
-
         // Calculate map position
         int sprite_map_id = sprite.map_id();
         int local_map_index = sprite_map_id - (current_world * 0x40);