feat(tui,gemini): implement verbose transfer and url image fetch

src/frontends/tui/components/App.tsx

@@ -51,6 +51,7 @@ export interface AppProps {
   hookEngine?: HookEngine;
   modelProviderConfigs?: Partial<Record<ModelProvider, ModelConfig>>;
   contextThresholdPct?: number;
+  onTransfer?: (target: string) => string | void;
   onExit?: () => void;
 }
 
@@ -64,6 +65,7 @@ export function App({
   hookEngine,
   modelProviderConfigs,
   contextThresholdPct,
+  onTransfer,
   onExit,
 }: AppProps): React.ReactElement {
   const { exit } = useApp();
@@ -92,6 +94,9 @@ export function App({
     if (!agent) {return;}
 
     const handleToolEvent = (event: ToolUseEvent) => {
+      if (!verbose) {
+        return;
+      }
       if (event.type === 'start') {
         const label = formatToolName(event.tool);
         const argsStr = event.args ? ` (${formatToolArgs(event.args)})` : '';
@@ -114,7 +119,7 @@ export function App({
     return () => {
       agent.setOnToolUse(undefined);
     };
-  }, [agent]);
+  }, [agent, verbose]);
 
   // Inline confirmations for dangerous tools (e.g. shell.exec) in fullscreen mode.
   useEffect(() => {
@@ -367,9 +372,18 @@ export function App({
       case 'fullscreen':
         return;
 
-      case 'transfer':
-        setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Transfer not supported in fullscreen mode.' })]);
+      case 'transfer': {
+        if (!onTransfer) {
+          setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Transfer target is not available in fullscreen mode.' })]);
+          return;
+        }
+        const result = onTransfer(command.target);
+        const content = typeof result === 'string' && result.trim()
+          ? result
+          : `Transfer requested: ${command.target}`;
+        setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content })]);
         return;
+      }
 
       case 'queue': {
         if (!command.action || command.action === 'show') {
@@ -572,6 +586,7 @@ export function App({
     tokenUsage.inputTokens,
     tokenUsage.outputTokens,
     modelProviderConfigs,
+    onTransfer,
   ]);
 
   return (