chore(main): release 7.3.0

[github-actions]

🤖 I have created a release beep boop

7.3.0 (2026-03-24)

Features

• types: Extract z.enum arrays to const arrays with derived types (#498) (08bede2)

Miscellaneous

• deps-dev: bump flatted from 3.1.1 to 3.4.2 (#495) (6443f81)
• migrate test runner from Jest to Vitest (#499) (d0ec312)

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[doistbot-app]

This release bumps the project version to 7.2.1 and includes a routine update to the flatted development dependency. No issues were flagged during the review of these maintenance changes.

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