Add Revocable Share Links
Build revocable delegated-access links with an application-owned durable store.
Revocable share links require the delegated-access store ports and atomic grant consumption.
No first-party durable direct Drizzle adapter exists for this extension yet. Use the published extension migrations with an application-owned store implementation that preserves expiry, revocation, audience/resource binding, use limits, and race behavior.
Do not use memory storage for production links. Verify consume and revoke races against the production engine before exposing an endpoint.