v2.0.18

Refactoring

• core: remove the unused EIP-3155 trace writer (#195)
• behavior-preserving cleanups and unused-API removals (#194)

CI

• attach the release binaries to the GitHub Release (release-v2.0.18) (#209)
• claude: mint the app token with the client id (#203)
• adopt the shared release flow (candidate / settle / publish) (#201)

Chores

• bump salt to v1.0.6 (#200)