Enhance timetable functionality and UI integration

- Updated protocol documentation to include new `classId` and `roomLabel` fields in the timetable API responses.
- Added classes and rooms to the timetable response structure, improving data accessibility for client applications.
- Enhanced the UI components to display timetable information, including class and room details, in the management and people panels.
- Implemented functionality to fetch and display personal timetables for individuals, ensuring a comprehensive view of schedules.
- Revised localization strings to support new timetable features and improve user experience.
- Added tests to validate the new timetable functionalities and ensure robustness in handling timetable data.

tests/HSchool.AppHost.Tests/TimetableApiTests.cs

@@ -31,6 +31,9 @@ public class TimetableApiTests(AppHostFixture fixture)
         Assert.Equal(7, table.LessonCount);
         Assert.Contains(table.Lessons, lesson => lesson.Subject == "Mathematics" && lesson.TeacherId == teacher);
         Assert.DoesNotContain(table.Uncovered, row => row.Subject == "Mathematics");
+        Assert.NotEmpty(table.Classes);
+        Assert.Contains(table.Rooms, room => room.Id == "classroom-101");
+        Assert.Contains(table.Lessons, lesson => lesson.RoomLabel.Length > 0);
 
         using var unassign = await client.DeleteAsync(
             $"/api/schools/{school.Id}/staff/{Uri.EscapeDataString(teacher)}/subjects/Mathematics",
@@ -184,7 +187,9 @@ public class TimetableApiTests(AppHostFixture fixture)
         int WeekDays,
         int LessonCount,
         IReadOnlyList<LessonResponse> Lessons,
-        IReadOnlyList<UncoveredResponse> Uncovered);
+        IReadOnlyList<UncoveredResponse> Uncovered,
+        IReadOnlyList<ClassResponse> Classes,
+        IReadOnlyList<RoomResponse> Rooms);
 
     private sealed record LessonResponse(
         string ClassId,
@@ -195,10 +200,15 @@ public class TimetableApiTests(AppHostFixture fixture)
         string TeacherId,
         string TeacherName,
         string RoomId,
+        string RoomLabel,
         int Day,
         int Period,
         bool Locked);
 
+    private sealed record ClassResponse(string Id, int Year, string Letter);
+
+    private sealed record RoomResponse(string Id, string Label);
+
     private sealed record UncoveredResponse(
         string ClassId,
         int ClassYear,