The attach lane: readable before it is signable

The most requested lane is not a new launch at all. It is attaching a ruled pool to a token that already exists, so a community with a live market can adopt visible swap rules without a migration.

The design is finished and the launcher renders it end to end: pick the token, pick the stack, read the composed overhead, see exactly what the pool creation would sign. The deploy button is disabled, and stays disabled until the factory generation behind it is deployed and promoted with receipts pinned.

Shipping the interface before the signer is a deliberate ordering. It lets anyone audit the exact flow, argue with the parameter bounds, and price the overhead before a single pool exists. The alternative, shipping the contract quietly and revealing the interface at launch, optimizes for surprise. Markets built on visible rules should not launch by surprise.

When attach goes live, an existing token's original pool keeps trading untouched. The attach lane opens a new v4 pool beside it, seeded at the current price, with the hook on the new pool only. Nothing about the old market is modified, which is the only honest way to retrofit rules onto history.