build_refusal_taxonomy_cases._STATEMENT_RE only matched the old 'no admissible
candidate for ...' shape, so post-#359 'recognizer matched but produced no
injection ... (category=X)' refusals were silently dropped (44 refusals -> 12
extracted). Extend it to both shapes (same gap fixed in rescan_v4 before that
layer was retired).
The lane mirrored 50 cases from the all-refused era; the reader now admits 6,
so it covers the 44 refused. Regenerated the cases fixture + committed
report.json and updated the count pins (50 -> 44).
Removed the perverse categorized_rate >= 0.95 floor: the exact histogram is
already pinned by test_committed_report_matches_categorizer, and the rate
drifts DOWN as the reader graduates categorized refusals — it fought reader
progress. Replaced with a sanity floor.
adr_0126: the unparseable 'contemplates' input still refuses (wrong=0); only
the reason wording changed (#359). Accept either non-admission phrasing.
