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.Ai/Decision.cs

@@ -250,7 +250,7 @@ public static class DecisionPlanner
         OccupiedCount occupied,
         ActionDef action)
     {
-        if (action.Abstract || action.Weight <= 0 || !RoleFits(action, state))
+        if (action.Abstract || !RoleFits(action, state))
         {
             return Intent.None;
         }
@@ -260,6 +260,32 @@ public static class DecisionPlanner
             return Intent.None;
         }
 
+        if (TalkActions.IsTeacherTalk(action.DefName))
+        {
+            if (state.BoundToLesson)
+            {
+                return Intent.None;
+            }
+
+            var teacherWeight = catalog.BehaviorRules?.TeacherAfterLessonWeight ?? 0f;
+            if (teacherWeight <= 0)
+            {
+                return Intent.None;
+            }
+
+            if (RoomFor(catalog, map, walks, state, occupied, action) is null)
+            {
+                return Intent.None;
+            }
+
+            return new Intent(GoalKind.Leisure, action.DefName, teacherWeight, action.DefName);
+        }
+
+        if (action.Weight <= 0)
+        {
+            return Intent.None;
+        }
+
         if (action.DefName.Equals(TalkActions.PhoneChat, StringComparison.Ordinal) && !state.Talk.HasPhone)
         {
             return Intent.None;
@@ -371,7 +397,8 @@ public static class DecisionPlanner
         {
             if (action.Abstract
                 || !need.Equals(action.Need, StringComparison.Ordinal)
-                || !RoleFits(action, state))
+                || !RoleFits(action, state)
+                || (state.BoundToLesson && TalkCircles.BlocksOnLesson(action.DefName)))
             {
                 continue;
             }