refactor: Restructure file dialog handling and introduce utility classes

- Updated file dialog references across the application to utilize a new `util::FileDialogWrapper` for consistent file handling.
- Refactored existing code to replace direct calls to `core::FileDialogWrapper` with the new utility class, enhancing modularity and maintainability.
- Introduced `util::PlatformPaths` for cross-platform directory management, ensuring consistent access to user directories and application data paths.
- Added new utility functions for file operations, improving the overall file handling capabilities within the application.
- Updated CMake configurations to include new utility source files, streamlining the build process.

src/app/gui/widgets/widget_auto_register.cc

@@ -0,0 +1,87 @@
+#include "app/gui/widgets/widget_auto_register.h"
+
+#include <vector>
+
+#include "imgui/imgui_internal.h"
+#include "absl/strings/str_join.h"
+#include "absl/strings/string_view.h"
+
+namespace yaze {
+namespace gui {
+
+// Thread-local storage for the current auto-registration scope
+thread_local std::vector<std::string> g_auto_scope_stack_;
+
+AutoWidgetScope::AutoWidgetScope(const std::string& name)
+    : scope_(name), name_(name) {
+  g_auto_scope_stack_.push_back(name);
+}
+
+AutoWidgetScope::~AutoWidgetScope() {
+  if (!g_auto_scope_stack_.empty()) {
+    g_auto_scope_stack_.pop_back();
+  }
+}
+
+void AutoRegisterLastItem(const std::string& widget_type,
+                          const std::string& explicit_label,
+                          const std::string& description) {
+  ImGuiContext* ctx = ImGui::GetCurrentContext();
+  if (!ctx || !ctx->CurrentWindow) {
+    return;
+  }
+
+  // Get the last item's ID
+  ImGuiID imgui_id = ctx->LastItemData.ID;
+  if (imgui_id == 0) {
+    return;  // No valid item to register
+  }
+
+  // Extract label
+  std::string label = explicit_label;
+  if (label.empty()) {
+    label = absl::StrCat(widget_type, "_", imgui_id);
+  }
+
+  // Build full hierarchical path
+  std::string full_path;
+  if (!g_auto_scope_stack_.empty()) {
+    full_path = absl::StrJoin(g_auto_scope_stack_, "/");
+    full_path += "/";
+  }
+  
+  // Add widget type and normalized label
+  std::string normalized_label = WidgetIdRegistry::NormalizeLabel(label);
+  full_path += absl::StrCat(widget_type, ":", normalized_label);
+
+  // Capture metadata from ImGui's last item
+  WidgetIdRegistry::WidgetMetadata metadata;
+  metadata.label = label;
+  
+  // Get window name
+  if (ctx->CurrentWindow) {
+    metadata.window_name = std::string(ctx->CurrentWindow->Name);
+  }
+
+  // Capture visibility and enabled state
+  const ImGuiLastItemData& last = ctx->LastItemData;
+  metadata.visible = (last.StatusFlags & ImGuiItemStatusFlags_Visible) != 0;
+  metadata.enabled = (last.ItemFlags & ImGuiItemFlags_Disabled) == 0;
+
+  // Capture bounding rectangle
+  WidgetIdRegistry::WidgetBounds bounds;
+  bounds.min_x = last.Rect.Min.x;
+  bounds.min_y = last.Rect.Min.y;
+  bounds.max_x = last.Rect.Max.x;
+  bounds.max_y = last.Rect.Max.y;
+  bounds.valid = true;
+  metadata.bounds = bounds;
+
+  // Register with the global registry
+  WidgetIdRegistry::Instance().RegisterWidget(
+      full_path, widget_type, imgui_id, description, metadata);
+}
+
+}  // namespace gui
+}  // namespace yaze
+