TokenPak v1.25.2

Fixed

• Proxy cost estimates now honor explicit model cache-read and cache-write
  prices from the pricing catalog, including zero-valued cache prices.
• Codex launcher upgrades now reconcile unchanged legacy skill copies after
  installing the canonical copies. Customized skills and installs to separate
  target directories remain preserved.
• The required license-policy check now runs on main-branch pushes and rejects
  missing or unusable comparison references instead of passing an empty scan.