Authorship lives in the annotated preview (D11); native diff stays
author-blind. Crucially, the review's proposed side is WRITABLE (INV-12,
D12): the writer tweaks the machine's suggestion before Keep ('close, but a
few human edits'), the live doc is untouched until Keep (INV-5), and on Keep
machine words vs writer tweaks are attributed separately by diffing
final<->machine-original<->baseline. This keeps authorship clean AT CREATION,
so post-hoc in-editor authorship (opts 2/3) is unnecessary and deferred. New
open Q7: per-change Keep/Undo semantics after free cross-hunk editing.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
BenStullsBets
1e54abdd8d