20 seed documents: 51 identifier tokens, 33 distinct

      analyzer outcome  count
        survives whole  0
      split into parts  33
MANGLED (a letter lost)  3

  BV-4437        -> ['bv', '4437']
  BV-QA-2025-0312 -> ['bv', 'qa', '2025', '0312']
  CBE-FROZEN     -> ['cbe', 'frozen']
  CBE-PHARMA     -> ['cbe', 'pharma']
  COLD-1         -> ['cold', '1']
  DAIRY-2        -> ['dairi', '2']   🔴 MANGLED
  GHY-7          -> ['ghy', '7']
  KFS-2014       -> ['kf', '2014']   🔴 MANGLED
  KV-NGP-C2-07   -> ['kv', 'ngp', 'c2', '07']
  NGP-MNT-552    -> ['ngp', 'mnt', '552']
  NGP-PNR-18     -> ['ngp', 'pnr', '18']
  QCL-CS-MTX-02  -> ['qcl', 'cs', 'mtx', '02']
  … 21 more

  question set  questions  with an identifier
         set-1        125                   4
         set-2        124                   0
         TOTAL        249                   4

🔴 4 id-bearing questions is BELOW SR-RS decision 19's floor of all
   floors (a net of 6). No arm on this set can clear alpha at any split,
   so the feature cannot be given a verdict here — a DATA DEFECT (d23b),
   fixed in the data, never filed as a null.
