## Why
Asynchronous questions can include suggested answers, but the TUI previously displayed only a freeform input. Show those choices and require them to be fully visible before submission.
## What changed
- Render numbered, wrapped choices with a default selection, list navigation, and digit shortcuts. Submit the selected label as the answer.
- Block submission of clipped choices and prompt the user to expand the terminal. Limit option processing to the first 32 entries and discard labels over 512 bytes.
- Preserve freeform input when no usable choices remain, and add contextual submit, skip, and question navigation hints.
- Ignore repeated submit keys so holding a key cannot answer another question.
## Testing
Add state, snapshot, and chat widget tests covering wrapped and clipped choices, constrained layouts, option limits, long answer preservation, oversized answer rejection, key repeats, and conflicting keybindings.
GitOrigin-RevId: 5d3ebadf61da62a9680ba819e6dfcf8302c4e9da
07f18d5ff7