Strengthen chapter review quality gates

- chapter_review.yml: mandatory PROSE EVIDENCE section (3-5 verbatim quotes)
- CHARACTER VOICE AUDIT with per-constraint checks and violation quoting
- Score anchors (95-100/85-94/70-84/<70) to break rubber-stamp clustering
- MUST-FIX items require ORIGINAL quote + PROBLEM + FIX rewrite
- Adjudication: prose_evidence(35) specificity(30) voice_audit(20) coverage(15)
- chapter_roundtable.yml: require quoted evidence, add character_profiles check

templates/chapter_roundtable.yml

@@ -49,11 +49,16 @@ steps:
       Read the chapter carefully from your editorial perspective.
       React to what other editors have written in prior rounds above.
       Where you agree, say so clearly. Where you disagree, argue your position
-      with evidence from the text. If you have changed your mind, say so.
+      with QUOTED EVIDENCE from the text -- do not make claims about the prose
+      without quoting the specific passage you are referring to.
+      If you have changed your mind, say so and quote what changed it.
 
       Cover the areas most relevant to your role:
         - Story structure and pacing
-        - Character voice and consistency
+        - Character voice and consistency -- if character_profiles is populated below,
+          check each speaking character against their voice constraints and quote any
+          violations you find
+          {character_profiles}
         - Line-level clarity and prose quality
         - Continuity with prior chapters and world rules