fix: render buffered output on terminal session attach (#51)

AttachSession returns a buffer containing any output that arrived before
the UI attached (e.g. the shell prompt). The return value was being
ignored, so the initial prompt never appeared — users had to type a
command before seeing any output.

Author: joshuapare

ui/providers/BottomDrawer/containers/Terminal.tsx

@@ -309,7 +309,11 @@ export default function TerminalContainer({ sessionId, tab }: Props) {
       });
 
       try {
-        await ExecClient.AttachSession(sessionId);
+        const result = await ExecClient.AttachSession(sessionId);
+        if (result.buffer) {
+          const decoded = textDecoder.decode(Base64.toUint8Array(result.buffer));
+          terminal.write(decoded);
+        }
       } catch (e) {
         log.error(new Error(parseAppError(e).detail), { event: 'attach_session', sessionId });
       }