book 9 fresh: voice collision fixes (lesson 3), structure pass (line split, vocab moves)

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

book-9-lesson-1.module

@@ -8,15 +8,15 @@ VOICE_DEFAULT: aoede | Clear, friendly American English narrator
 VOICE_INTRO: aoede | Warm, lightly witty teacher voice
 VOICE_PROMPT: gacrux | Questions and cues, read clearly
 VOICE_RESPONSE: schedar | Model answers, warm and clear
-VOICE: Mark | charon | Male speaker
+VOICE: Mark | puck | Male speaker
 VOICE: Clerk | aoede | Female bank clerk
 VOICE: Student | achird | Male student
 VOICE: Woman | aoede | Female bank clerk
 VOICE: Jack | schedar | Male speaker
-VOICE: Fred | achird | Male speaker
-VOICE: Mike | charon | Male speaker
-VOICE: Lou | orus | Male speaker
-VOICE: Jim | iapetus | Male speaker
+VOICE: Fred | alnilam | Male speaker
+VOICE: Mike | rasalgethi | Male speaker
+VOICE: Lou | umbriel | Male speaker
+VOICE: Jim | fenrir | Male speaker
 VOICE: Ray | orus | Male speaker
 VOICE: Brad | charon | Male speaker
 VOICE: John | achird | Male speaker
@@ -24,14 +24,14 @@ VOICE: Teller | gacrux | Female bank teller
 VOICE: Mrs_Morris | aoede | Female customer
 VOICE: Lt_Andrews | schedar | Male officer
 VOICE: Capt_Miles | charon | Male officer
-VOICE: Tom | schedar | Male speaker
+VOICE: Tom | puck | Male speaker
 VOICE: Stan | iapetus | Male speaker
 VOICE: Pat | achernar | Female speaker
 VOICE: Tim | achird | Male speaker
 VOICE: Ted | achird | Male speaker
 VOICE: Nancy | aoede | Female speaker
 VOICE: Ellen | gacrux | Female speaker
-VOICE: Bob | charon | Male speaker
+VOICE: Bob | umbriel | Male speaker
 VOICE: Lt_Sands | orus | Male officer
 VOICE: Lt_Reed | iapetus | Male officer
 VOICE: Rita | sulafat | Female speaker