0031acf59e
Local audit of the full-book output is now exhaustive and clean (package parts, content types, rels, styles, numbering, bookmark ids, fields, sectPr/settings ordering, control chars, header/footer machine). LibreOffice renders the file fine but Word hard-refuses it, so the trigger must be isolated empirically: each candidate removes exactly one feature family. - tests/make_bisect_files.py: regenerates six candidates from the final full-book output (no running heads; no oddPage/titlePg; no field runs; no style refs; first 8 sections only; no images). - tests/word_bisect/bisect_0[1-6]_*.docx: the six fixtures (all verified to load via python-docx and convert via LibreOffice).