The home's "N waiting on you" line carries `break`, so it never widens the page on a narrow screen #6618

Intent: the one line over /review on the owner's home (waitingLine in src/web/studio/kpi_row.ts) wraps instead of pushing the page wider. Replaces #6068, whose premise was wrong: this line holds a count and an age (3 waiting on you, oldest 50 h), never an ask's title, and the home must keep showing no ask titles at all.

Done:

• [ ] The paragraph is <p class="small muted break">, using the existing .break utility from base.ts. No new class, no ask titles, no other markup change. The stale fold (staleArchive) stays a form after the paragraph, so its button already sits on its own line.
• [ ] test/home-kpi-row.test.ts: the existing "home waiting line" render assertion expects the break class (the test changes because the behaviour does), and it fails on main.
• [ ] bun test test/home-kpi-row.test.ts test/home-feed.test.ts passes, including "six open asks fill /asks and leave the home bare", and bun scripts/design-lint.ts passes.

Files: src/web/studio/kpi_row.ts, test/home-kpi-row.test.ts