feat(tui): show @handle in AI title and user input from oauth/token

src/tui.rs

@@ -41,6 +41,8 @@ pub struct App {
     ai_status: String,
     ai_scroll: u16,
     ai_phase: AiPhase,
+    ai_handle: String,
+    user_handle: String,
 
     agents: Vec<Agent>,
     selected: usize,
@@ -72,6 +74,8 @@ impl App {
         let claude = ClaudeManager::spawn().ok();
         let ai_status = if claude.is_some() { "starting..." } else { "not available" };
 
+        let (user_handle, ai_handle) = load_handles();
+
         let mut app = Self {
             claude,
             ai_output: String::new(),
@@ -79,6 +83,8 @@ impl App {
             ai_status: ai_status.to_string(),
             ai_scroll: 0,
             ai_phase: AiPhase::Idle,
+            ai_handle,
+            user_handle,
             agents: Vec::new(),
             selected: 0,
             next_id: 1,
@@ -663,6 +669,30 @@ fn parse_agent_commands(text: &str) -> Vec<(String, String, String)> {
 }
 
 /// Load identity context from atproto config + recent chat.
+/// Load user and AI handles. Priority: oauth > token/bot > config.json
+fn load_handles() -> (String, String) {
+    let cfg_dir = crate::config::config_dir();
+    let base = format!("{cfg_dir}/ai.syui.log");
+
+    let read_handle = |path: &str| -> Option<String> {
+        let content = std::fs::read_to_string(path).ok()?;
+        let v: serde_json::Value = serde_json::from_str(&content).ok()?;
+        v["handle"].as_str().map(|s| s.to_string())
+    };
+
+    // User: oauth_session > token
+    let user = read_handle(&format!("{base}/oauth_session.json"))
+        .or_else(|| read_handle(&format!("{base}/token.json")))
+        .unwrap_or_default();
+
+    // Bot: oauth_bot_session > bot
+    let bot = read_handle(&format!("{base}/oauth_bot_session.json"))
+        .or_else(|| read_handle(&format!("{base}/bot.json")))
+        .unwrap_or_default();
+
+    (user, bot)
+}
+
 fn load_identity_context() -> String {
     let config_path = crate::config::config_path();
 
@@ -800,10 +830,12 @@ fn render_ai_section(frame: &mut Frame, app: &App, area: Rect) {
     let border_style = Style::default().fg(ai_color);
 
     let (ai_icon, ai_label_color) = ai_status_icon(app.ai_status.as_str());
+    let ai_name = if app.ai_handle.is_empty() { "AI".to_string() }
+        else { format!("@{}", app.ai_handle) };
     let title_spans = vec![
         Span::raw(" "),
         Span::styled(format!("{ai_icon} "), Style::default().fg(ai_label_color)),
-        Span::styled("AI", Style::default().fg(ai_color).add_modifier(Modifier::BOLD)),
+        Span::styled(&ai_name, Style::default().fg(ai_color).add_modifier(Modifier::BOLD)),
         Span::styled(format!(" {} ", app.ai_status), Style::default().fg(ai_label_color)),
     ];
 
@@ -829,8 +861,10 @@ fn render_ai_section(frame: &mut Frame, app: &App, area: Rect) {
         .scroll((scroll, 0));
     frame.render_widget(output, layout[0]);
 
+    let user_label = if app.user_handle.is_empty() { ">".to_string() }
+        else { format!("@{}", app.user_handle) };
     let input_line = Line::from(vec![
-        Span::styled(" > ", Style::default().fg(ai_color)),
+        Span::styled(format!(" {user_label} "), Style::default().fg(Color::DarkGray)),
         Span::raw(&app.ai_input),
         if ai_focused { Span::styled("_", Style::default().fg(ai_color)) }
         else { Span::raw("") },