Safe DOCX posture
Deleted paragraph mark (w:del under w:pPr/w:rPr)
ECMA-376 Part 1 §17.13.5.15 defines w:del inside w:pPr/w:rPr as a tracked
deletion of the *paragraph mark* (the glyph ending the paragraph), not of the
paragraph's contents. Accepting the revision removes the paragraph break, so
the paragraph's remaining content merges into the following paragraph; the
contents themselves are deleted only where they carry their own run-level
w:del wrappers. safe-docx's accept paths implement this merge in
packages/docx-core/src/primitives/accept_changes.ts and
packages/docx-compare/src/baselines/atomizer/trackChangesAcceptorAst.ts.