The frame codec exists with parity proven both ways from its first
commit, and its test found a real divergence before any consumer could:
the JavaScript decoder deletes a leading byte-order mark the .NET decoder
keeps. Two housekeeping rulings taken: the aggregate TypeScript scripts
have been broken by a rename for two days and get their one-word fix, and
the mutation runner is renamed for what it now covers.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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