[action] Claude Fable 5 marked unavailable on Anthropic's pricing page

Anthropic's public pricing page lists Claude Fable 5 with full pricing but marks it 'unavailable' with a 'Learn more' link. The underlying reason (regulatory action, suspension, or other restriction) is not yet captured. Pricing remains $10/$50 per Mtok with $12.50/$1.00 cache write/read. Affected: anthropic/claude-fable-5. Severity: action_required. Verification: verified.