chore(master): release 1.18.0

[github-actions]

🤖 I have created a release beep boop

1.18.0 (2026-09-17)

Features

• cli: heal pre-date-slug ADR guidance in existing repos; author the minting contract in the managed surface (f283c12)
• cli: heal pre-date-slug ADR guidance in existing repos; author the minting contract in the managed surface (4c20aea)
• cli: launch-design-implement — build a Claude Design canvas true to the prototype (ee54168)
• cli: launch-design-implement — build a Claude Design canvas true to the prototype (design-fidelity-build) (629896c)
• cli: launch-design-implement is one invocation — the drop is packaged on the way (6cfdbe9)
• cli: Ralph loop lands branches with a merge, preserving each ticket's commits (de3ea95)
• cli: Ralph loop lands branches with a merge, preserving each ticket's commits (57c6e86)

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[github-actions]

🤖 Created releases:

• v1.18.0

🌻