Add AI parent meetings after a class last lesson.

Class teachers rarely keep the homeroom; invited parents walk onto the map, opinions nudge, then parents leave OffCampus. No player schedule API.

src/HSchool.Simulation/School.cs

@@ -153,6 +153,14 @@ public sealed class School : IDisposable
 
     internal int NextSummonOrder { get; set; }
 
+    /// <summary>
+    /// Active parent meetings. Worker thread only — never HTTP. Cleared on morning / skip.
+    /// </summary>
+    internal List<ParentMeetingSession> ActiveParentMeetings { get; } = [];
+
+    /// <summary>Class ids that already rolled a meeting chance today (pass or fail).</summary>
+    internal HashSet<string> ParentMeetingRolledToday { get; } = new(StringComparer.Ordinal);
+
     /// <summary>
     /// A finished or interrupted circle wrote opinions onto the roster. <see cref="Tick"/>
     /// returns this so the worker persists <c>people.json</c> — same seam as morning dress.
@@ -314,6 +322,7 @@ public sealed class School : IDisposable
         Clock.JumpTo(next.Value);
         TalkCircleSystem.AbandonAll(this);
         DirectorSummonSystem.ClearAll(this);
+        ParentMeetingSystem.ClearAll(this);
         ResetDayLog();
         var peopleChanged = TryYearlyIntake(before, next.Value);
         peopleChanged |= TryApplicantRefresh();
@@ -388,6 +397,7 @@ public sealed class School : IDisposable
                 ResetDayLog();
                 // Hung summons do not survive the work morning — same clear as skip empty.
                 DirectorSummonSystem.ClearAll(this);
+        ParentMeetingSystem.ClearAll(this);
             }
 
             peopleChanged = TryYearlyIntake(before, Clock.Time);
@@ -445,6 +455,29 @@ public sealed class School : IDisposable
     public string? DirectorSummonPresenceActionId(string personId) =>
         DirectorSummonSystem.PresenceActionId(DirectorSummonPresencePhase(personId));
 
+    /// <summary>
+    /// Card label while walking to / sitting in a parent meeting without a live activity yet.
+    /// </summary>
+    public string? ParentMeetingPresenceActionId(string personId)
+    {
+        if (!ParentMeetingSystem.IsInMeeting(this, personId))
+        {
+            return null;
+        }
+
+        var session = ActiveParentMeetings.FirstOrDefault(row =>
+            row.TeacherId.Equals(personId, StringComparison.Ordinal)
+            || row.AttendeeIds.Contains(personId));
+        if (session is null)
+        {
+            return null;
+        }
+
+        return session.InProgress && session.TeacherId.Equals(personId, StringComparison.Ordinal)
+            ? HSchool.Ai.ParentMeetings.MeetingAction
+            : HSchool.Ai.ParentMeetings.GoingAction;
+    }
+
     private void RecordWorldEvents(DateTime before, DateTime after)
     {
         _worldEvents.AddRange(EventSystem.Detect(this, before, after));
@@ -469,6 +502,7 @@ public sealed class School : IDisposable
         }
 
         DirectorSummonSystem.Apply(this);
+        ParentMeetingSystem.Apply(this);
 
         PersonDayLog.Sync(this);