- [x] at the end of _any_ **kind** ~of~ `formatting`, ALL styles are cleared, which for user-text clears the background that should still be there.
- [x] screen flickers. I think our differential rendering has gotten broken and we're re-drawing the full conversation on every update.
- [x] tool components don't have their collapsed form any more, they're always showing their output expanded, ctrl+o does nothing.
- [ ] empty lines in user-text are getting dropped - (shift+enter)*2 doesn't show an empty line in the middle when the user text is rendered in the component.
  - [ ] in another test, this text: "`code block`\n_underline_\n**bold**\n~strikethrough~" was collapsed down to one line with just spaces between them. this time it wasn't even a double-newline.
- [ ] keybindings need to work while the agent is working in a loop. most important: Escape should interrupt the agent wherever it is, return back to user-input mode (to avoid a broken convo history we'll have to clear any tool calls that didn't get results).