Authorizes the Pendulum runtime `pendulum-release-26` (`parachainSystem.authorizeUpgrade`, `check_version = true`). Code hash (blake2-256) `0x6a19a408826fb4d2ab04886c864714dda188df2a1bfa11f27b1b2d0c0192e896`, sha256 `370ac425…2eb66d`, reproducibly built with `paritytech/srtool:1.81.0` from commit `14eb720`: [https://github.com/pendulum-chain/pendulum/releases/tag/pendulum-release-26](https://github.com/pendulum-chain/pendulum/releases/tag/pendulum-release-26). The upgrade adds the `tokenMigration` pallet (index 102), which **ships paused**; enabling migrations is a separate governance act after the Base-side vault and attestor set are live. No other runtime changes; `transaction_version` unchanged.&#x20;

#73 Runtime upgrade to spec 26: PEN → Base token-migration pallet