- Header: use colored values (API cyan, model green, dir yellow, etc.)
- Markdown: render progressively during streaming (not just after completion)
- Streaming cursor appended to last rendered line
- Scroll: preserve user scroll offset during streaming token updates
- Previously reset to 0 on every token, now keeps user position
- All process info (tool calls, thinking) persists after completion
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
