apply answerability-audit repair queue: ACCEPT variants, derivability fixes, rubric rewrites (46 masters)

- MISSING_ALTERNATIVES (63/64 applied): uncontracted/contracted forms, digit
  variants (05|5), synonyms and full-sentence variants, via ACCEPT lines and
  inline gap alternatives; skipped 'better/fine' for the Opposites drill (not
  opposites of "sick").
- NOT_DERIVABLE (16 fixed, 10 false alarms, 1 skipped): item-level fixes
  (visible word hints, missing premise, speaker clarifications "Joe (to Jim):",
  emphasis/cue corrections, un-gapped unguessable words, rounded-number
  accepts); converted the two book-10 paragraph clozes (Mary / The Mall) from
  CHECK: exact to CHECK: llm with logical-completion rubrics; cross-book
  recycled vocab (pilot, teller, barber, variety store, ...) left alone.
- UNCLEAR_TARGET (10): instruction/intro corrections (Food "Type the word for
  the food.", Explain-with-Too intro), cue/emphasis fixes.
- Rubric rewrites (57): applied audit-suggested grader rubrics (now effective
  with the pre-item RUBRIC parser fix); moved the two per-item rubrics of
  book-11 "Write the Main Idea" inside their items.

No clip-bearing line changed; all masters validate (0 errors, 0 new warnings)
and pass stage-master clip-identity checks. Full decision log:
reactor-module-tools module-convert/answerability-audit/APPLIED.md

Co-authored-by: Cursor <cursoragent@cursor.com>

book-1-lesson-4.module

@@ -206,7 +206,7 @@ CHECK: llm
 SHOW_PROMPT
 INTRO: Now build the long answers yourself. Answer each question in a full sentence — yes or no, your choice; the shape of the answer is what matters.
 INSTRUCTION: Answer with a full long answer.
-RUBRIC: Yes or no is the learner's choice. Require a full long answer with the correct pronoun and verb form (e.g. "Yes, he is a mechanic." / "No, he isn't a mechanic."); a bare "yes"/"no" fails.
+RUBRIC: Yes or no is the learner's choice. Require a full sentence answer repeating the predicate (e.g. "Yes, he is a mechanic." / "No, he isn't a mechanic."); a bare "yes"/"no" or a short answer like "Yes, he is." fails — hint toward the full form. Accept either a matching pronoun or the original cued name, and contracted or full forms.
 
 PROMPT: Is Joe a mechanic?
 RESPONSE: Yes, he is a mechanic.