Sprint 56h: fix spawn_list bug + add iris character_sheet support + voice sig auto-import

steps/chapter_pass0_bible.yml

@@ -47,6 +47,11 @@ hint: |
       - KEY BEATS: 3–5 numbered scene beats that will form the chapter
       - CLOSING HOOK: Exact last image or line that makes readers continue
       - Reminders about continuity, prose style, and target length
+      - CHARACTER VOICE PROFILES (pre-extracted):
+        {character_profiles}
+        If this block is empty, fall back to searching PROJECT DELIVERABLES for a file
+        containing "## Voice Signatures" and copy it here. PASS 1 must write every
+        character to their profile.
 
   STEP 5 — PREVIOUS CHAPTER CHARACTER STATE (if available):
     If context contains a block starting with "PREVIOUS CHAPTER CHARACTER STATE:",