Add lesson whispers, teacher catch chance, and after-bell teacher talk.

Whispering cuts lesson skill gain from BehaviorDef; a teacher in the room may interrupt into a discipline circle, and pedagogy scales the pupil's opinion of the teacher.

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

src/HSchool.Content/PeopleDefs.cs

@@ -210,6 +210,11 @@ public sealed class TraitDef : Def
 
     /// <summary>Pull toward topics carrying these tags when this person picks the subject.</summary>
     public IReadOnlyList<TopicTagWeight> TalkTagWeights { get; init; } = [];
+
+    /// <summary>
+    /// Multiplies the chance a whisper is caught. Quiet below 1, outgoing above. Missing is 1.
+    /// </summary>
+    public float WhisperCatchMultiplier { get; init; } = 1f;
 }
 
 /// <summary>Conversation subject. Tags gate appropriateness; language is optional skill help.</summary>
@@ -415,6 +420,37 @@ public sealed class BehaviorDef : Def
     /// <summary>Opinion at or below — enemy; never invited, lunch nodes avoided.</summary>
     public int TalkEnemyThreshold { get; init; } = -40;
 
+    /// <summary>
+    /// Lesson skill multiplier while the pupil is in a whisper circle. Missing keeps a cut, not
+    /// a skipped lesson — whispering is costly, not a free skip.
+    /// </summary>
+    public float LessonWhisperSkillFactor { get; init; } = 0.4f;
+
+    /// <summary>Base chance the teacher notices one whisper circle. Traits scale it; never 1.</summary>
+    public float WhisperCatchChance { get; init; } = 0.4f;
+
+    /// <summary>Ceiling after traits. A pack cannot make every whisper a sure catch.</summary>
+    public float WhisperCatchMax { get; init; } = 0.85f;
+
+    /// <summary>
+    /// How far pedagogy 0…100 bends a pupil's opinion of the teacher. 50 is identity; above it
+    /// praise grows and reprimand softens, below it the reverse.
+    /// </summary>
+    public float TalkPedagogyOpinionScale { get; init; } = 0.4f;
+
+    /// <summary>Leisure weight for a teacher taking pupils after the bell. Below lesson, above chat.</summary>
+    public float TeacherAfterLessonWeight { get; init; } = 4f;
+
+    /// <summary>Relative weights when the teacher picks question / praise / reprimand.</summary>
+    public float TeacherQuestionWeight { get; init; } = 2f;
+
+    public float TeacherPraiseWeight { get; init; } = 2f;
+
+    public float TeacherReprimandWeight { get; init; } = 1f;
+
+    /// <summary>Per-decision chance a pupil in class tries to start a whisper, before initiative.</summary>
+    public float WhisperStartChance { get; init; } = 0.12f;
+
     public static IReadOnlyList<OpinionBand> DefaultOpinionBands { get; } =
     [
         new() { Min = 70, Id = "OpinionCloseFriend" },