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.Server/mods/core/localizations/en.jsonc

@@ -232,7 +232,9 @@
   "LessonStarted": "A lesson has started",
   "GenerationFailed": "Portrait generation failed",
   "DirectorSummoned": "A pupil was summoned to the principal",
+  "ParentMeeting": "A parent meeting is under way",
   "GoingToPrincipal": "going to the principal",
   "WaitForPrincipal": "waiting at the principal's office",
+  "GoingToParentMeeting": "going to a parent meeting",
   "core": "Core",
 }

src/HSchool.Server/mods/core/localizations/ru.jsonc

@@ -232,7 +232,9 @@
   "LessonStarted": "Начало урока",
   "GenerationFailed": "Не удалось нарисовать портрет",
   "DirectorSummoned": "Ученика вызвали к директору",
+  "ParentMeeting": "Идёт родительское собрание",
   "GoingToPrincipal": "идёт к директору",
   "WaitForPrincipal": "ждёт у кабинета директора",
+  "GoingToParentMeeting": "идёт на собрание",
   "core": "Базовая игра",
 }