The output area was always visible (empty terminal container shown on
page load). Now it only appears after the user clicks Run, with three
states:
- Not run: output area hidden entirely (show_output = false)
- Running, no output yet: skeleton screen placeholder
(running && !has_output)
- Output received: skeleton gone, xterm renders streamed content
Two new signals drive this:
- show_output: set true on Run click, controls output area visibility
- has_output: set true on first stdout/stderr chunk (SSE) or writeAll
(polling fallback), dismisses the skeleton
xterm mount effect now reads show_output, so it retries after the
container div enters the DOM (when show_output flips true).
xfy
9191d07200