- Connection-aware Welcome: when the hub is down, show a hero with a
primary "Start hub" CTA + install fallback instead of a dead,
all-unchecked onboarding checklist (the first-run cliff).
- Actionable binary-not-found (file picker + install link, not a
"set FAI_BIN" dead end) and a connect-failure banner after
repeated failed health polls.
- Localize six hardcoded English error/toast clusters (DE+EN ARB).
- Bundle Inter + JetBrains Mono as assets; drop the runtime
google_fonts fetch (air-gap / KRITIS safe, no font-swap flash).
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
