Chrome start-hidden default is now startsChromeHidden(): phones (UA-CH),
tablets (coarse primary pointer at any width), and narrow windows (<=900px,
any pointer). isMobileMode() drops its narrow-viewport requirement so
tablets get the full mobile treatment (touch shim, preflight suppression);
touch laptops stay desktop (fine primary pointer). capabilities.ts probe
kept in sync. ?mobile= still overrides both ways.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CkUNWj4KWz6WfP8VwRsUNN
3ff53f0a78