feat: Enhance Agent Editor and Chat Widget for Improved Configuration and Collaboration

- Introduced a comprehensive AI Agent configuration dashboard, allowing users to select providers, models, and adjust settings.
- Updated the AgentChatWidget to include a reactive UI for collaboration status and improved connection management.
- Enhanced the EditorManager to initialize the agent editor with dependencies and streamline the editor selection process.
- Added functionality to clear recent editors upon loading a new ROM, ensuring a fresh start for user sessions.
- Improved the menu structure to include new options for the AI Agent, enhancing user interaction and accessibility.

src/app/editor/ui/editor_selection_dialog.cc

@@ -55,6 +55,10 @@ EditorSelectionDialog::EditorSelectionDialog() {
     {EditorType::kHex, "Hex Editor", ICON_MD_DATA_ARRAY,
      "Direct ROM memory editing and comparison", "Ctrl+0", false, true,
      ImVec4(0.2f, 0.8f, 0.4f, 1.0f)},  // Matrix green
+
+    {EditorType::kAgent, "AI Agent", ICON_MD_SMART_TOY,
+     "Configure AI agent, collaboration, and automation", "Ctrl+Shift+A", false, false,
+     ImVec4(0.8f, 0.4f, 1.0f, 1.0f)},  // Purple/magenta
     
     {EditorType::kSettings, "Settings", ICON_MD_SETTINGS,
      "Configure ROM and project settings", "", false, true,

src/app/editor/ui/editor_selection_dialog.h

@@ -85,6 +85,14 @@ class EditorSelectionDialog {
    */
   void SaveRecentEditors();
   
+  /**
+   * @brief Clear recent editors (for new ROM sessions)
+   */
+  void ClearRecentEditors() {
+    recent_editors_.clear();
+    SaveRecentEditors();
+  }
+  
  private:
   void DrawEditorCard(const EditorInfo& info, int index);
   void DrawWelcomeHeader();

src/app/editor/ui/welcome_screen.cc

@@ -552,7 +552,7 @@ void WelcomeScreen::DrawRecentProjects() {
   }
   
   // Grid layout for project cards (compact)
-  float card_width = 200.0f;  // Reduced for compactness
+  float card_width = 220.0f;  // Reduced for compactness
   float card_height = 95.0f;   // Reduced for less scrolling
   int columns = std::max(1, (int)(ImGui::GetContentRegionAvail().x / (card_width + 12)));
   
@@ -650,8 +650,8 @@ void WelcomeScreen::DrawProjectCard(const RecentProject& project, int index) {
   ImGui::SetCursorScreenPos(ImVec2(content_pos.x + 4, content_pos.y + 58));
   ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0.4f, 0.4f, 0.4f, 1.0f));
   std::string short_path = project.filepath;
-  if (short_path.length() > 28) {
-    short_path = "..." + short_path.substr(short_path.length() - 25);
+  if (short_path.length() > 26) {
+    short_path = "..." + short_path.substr(short_path.length() - 23);
   }
   ImGui::Text(ICON_MD_FOLDER " %s", short_path.c_str());
   ImGui::PopStyleColor();