Enhance school day structure and decision-making for lunch breaks

- Updated `ai.md` to clarify the mechanics of hunger restoration and the importance of lunch breaks in the school schedule.
- Revised `schedule.md` to detail the new lunch break structure, allowing for separate sittings for different grade levels.
- Enhanced `Decision.cs` and `DecisionPlanner.cs` to incorporate logic for lunch breaks, ensuring that students only leave lessons during their designated lunch windows.
- Updated `DayFrameDef` and related classes to support multiple lunch breaks and validate their configurations.
- Adjusted tests to validate the new decision-making logic regarding lunch breaks and hunger management, ensuring robust functionality.
- Improved localization strings to reflect changes in the school day structure and lunch functionalities.

src/HSchool.Client/src/i18n/strings.ts

@@ -76,8 +76,6 @@ const ru = {
   resume: 'Продолжить',
 
   mapTitle: 'Карта',
-  eventsTitle: 'События',
-  eventsEmpty: 'Пока ничего не происходит.',
   locationName: 'Локация',
   personTitle: 'Человек',
   locationItems: 'Предметы',
@@ -288,8 +286,6 @@ const en: Messages = {
   resume: 'Resume',
 
   mapTitle: 'Map',
-  eventsTitle: 'Events',
-  eventsEmpty: 'Nothing is happening yet.',
   locationName: 'Location',
   personTitle: 'Person',
   locationItems: 'Items',