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/unit/gui/canvas_automation_api_test.cc

@@ -316,7 +316,8 @@ TEST_F(CanvasAutomationAPITest, CenterOn_ValidTile) {
   api_->CenterOn(0, 0);
   api_->CenterOn(20, 20);
 
-  // Verify scroll position changed (should be non-zero after centering on non-origin)
+  // Verify scroll position changed (should be non-zero after centering on
+  // non-origin)
   ImVec2 scroll = canvas_->scrolling();
   // Scroll values will depend on canvas size, just verify they're set
 }

test/unit/gui/canvas_coordinate_sync_test.cc

@@ -1,8 +1,7 @@
-#include "app/gui/canvas/canvas.h"
-
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
+#include "app/gui/canvas/canvas.h"
 #include "testing.h"
 
 namespace yaze {
@@ -150,8 +149,8 @@ TEST_F(CanvasCoordinateSyncTest, MapCalculation_LargeMaps) {
 // ============================================================================
 
 TEST_F(CanvasCoordinateSyncTest, HoverPosition_ScaleInvariant) {
-  // REGRESSION TEST: Hover position should be in world space regardless of scale
-  // The bug was scale-dependent because it used screen coordinates
+  // REGRESSION TEST: Hover position should be in world space regardless of
+  // scale The bug was scale-dependent because it used screen coordinates
 
   auto test_hover_at_scale = [&](float scale) {
     canvas_->set_global_scale(scale);
@@ -184,7 +183,8 @@ TEST_F(CanvasCoordinateSyncTest, OverworldMapHighlight_UsesHoverNotDrawn) {
   // The pattern used in DrawOverworldEdits (line 664) for painting:
   auto drawn_pos = canvas_->drawn_tile_position();
 
-  // The pattern that SHOULD be used in CheckForCurrentMap (line 1041) for highlighting:
+  // The pattern that SHOULD be used in CheckForCurrentMap (line 1041) for
+  // highlighting:
   auto hover_pos = canvas_->hover_mouse_pos();
 
   // These are different methods for different purposes: