0.7.0 - free credits

[0.7.0] - 2026-08-22

Added

• Free credits. Visitors with no key run on the project's key, for models
  priced under $1.50 per million input tokens. Limits are counted in real
  money from the provider's own per-call cost: $0.05 per visitor per day,
  $3.00 for everyone per day.
• Honest limits everywhere: a banner, a lane note, and a run message when
  credits are gone, plus a one-time note after a first free run explaining
  that a free key removes all limits.
• Star Repository button, and a Share button on the verdict cards.

Fixed

• The page never declared its text encoding, so some browsers printed broken
  characters. The spinner now turns on its own centre.