v0.31.0-beta.5

Delta since previous beta (v0.31.0-beta.4) — 2 new changesets.

Patch Changes

• Literal non-breaking spaces (U+00A0) in document prose now survive WYSIWYG edits and every markdown re-parse, instead of silently becoming regular spaces. The pipeline's internal NBSP whitespace sentinel was removed; whitespace-only text nodes are preserved by the existing inline-whitespace char-ref mechanism, which now also covers NBSP at emphasis boundaries.

• Fix the branch-mismatch share dialog ("Open shared document") overflowing its modal when the shared branch has a long name. The switch action used to embed the full branch name ("Switch to <branch>"), which pushed the button row past the dialog edge and clipped the primary "Open in worktree" button. The action now reads simply "Switch branch" — the branch name is already shown in the dialog's Branch row and body — and the footer's action group wraps instead of overflowing when all three actions (Open in current branch / Switch branch / Open in worktree) are present.