feat: moved a2ui surface to a separate panel

src/app.rs

@@ -90,6 +90,7 @@ pub(crate) struct App {
     pub(super) a2ui_image_requests: HashSet<String>,
     pub(super) a2ui_image_loading: bool,
     pub(super) pending_a2ui_dismissal: Option<String>,
+    pub(super) a2ui_auto_switch_pending: bool,
     pub(super) generating: bool,
     pub(super) context_used: u32,
     pub(super) context_limit: u32,
@@ -141,6 +142,7 @@ pub(crate) struct App {
 pub(super) enum DetailTab {
     #[default]
     Chat,
+    A2ui,
     Stats,
 }
 
@@ -264,6 +266,7 @@ pub(crate) enum Message {
     SetSessionState(i32, SessionState),
     ToggleArchivedSessions(i32),
     ShowChat,
+    ShowA2ui,
     ShowStats,
     ToggleSidebar,
     StartSidebarDrag,
@@ -346,6 +349,7 @@ impl App {
                         a2ui_image_requests: HashSet::new(),
                         a2ui_image_loading: false,
                         pending_a2ui_dismissal: None,
+                        a2ui_auto_switch_pending: false,
                         generating: false,
                         context_used: 0,
                         context_limit,
@@ -464,6 +468,7 @@ impl App {
             a2ui_image_requests: HashSet::new(),
             a2ui_image_loading: false,
             pending_a2ui_dismissal: None,
+            a2ui_auto_switch_pending: false,
             generating: false,
             context_used: 0,
             context_limit,
@@ -571,7 +576,11 @@ impl App {
             Message::FocusPrevious => {
                 return iced::widget::operation::focus_previous().chain(reveal_focused());
             }
-            Message::ShowChat => self.detail_tab = DetailTab::Chat,
+            Message::ShowChat => {
+                self.detail_tab = DetailTab::Chat;
+                return scroll_chat_to_end();
+            }
+            Message::ShowA2ui => self.detail_tab = DetailTab::A2ui,
             Message::ShowStats => {
                 self.detail_tab = DetailTab::Stats;
                 self.scan_kv_cache();