Exit summary has garbled text from TUI status area

Description

When exiting Claude Code via /exit, the session summary (token usage, session counts) has leftover characters from the TUI status area bleeding into each line. The exit screen doesn't fully clear terminal lines before writing the summary.

Expected behavior

Clean exit summary:

⚡ Claude Code
   Today  70M tokens ·  246 sessions
   Week  634M tokens · 1498 sessions
   Month 1.8B tokens · 3411 sessions

Actual behavior

Residual characters from previously rendered TUI content (skill descriptions, etc.) appear appended to each line:

⚡ Claude Code                 Configure extra usage to keep working when limits are hit
   Today  70M tokens ·  246 sessionslize current context usage as a colored grid
   Week  634M tokens · 1498 sessions emails in Magnus's authentic writing style. Use when writing emails, composing messages, or when the user wants to sen…
   Month 1.8B tokens · 3411 sessions calendar, find available dates, verify if specific dates work, or see upcoming events. Use whenever the user mentions …

The trailing text on each line comes from skill/MCP server descriptions that were rendered in the TUI status area during the session.

Reproduction

1. Have multiple skills/MCP servers registered (more text in status area = more visible artifact)
2. Run a Claude Code session
3. Exit with /exit
4. Observe garbled summary output

Environment

• macOS (Darwin 25.4.0)
• Terminal: default macOS Terminal / iTerm2
• Claude Code with custom statusline script and ~15 skills + MCP servers registered