Enhance school creation and staffing management with native language support

- Updated protocol documentation to include `nativeLanguages` in `nameSets` and added `nativeLanguage` to school creation options.
- Enhanced the UI for school creation to allow selection of native languages, improving user experience.
- Revised API interfaces to accommodate new native language features, ensuring proper data handling.
- Improved localization strings to support new native language functionalities in both English and Russian.
- Updated tests to validate the new native language features and ensure robust functionality in staffing scenarios.

src/HSchool.Server/Api/PeopleModels.cs

@@ -206,7 +206,8 @@ internal sealed record ApplicantResponse(
     bool IsParent,
     float HourlyWageAsk,
     float MonthlyBase,
-    IReadOnlyList<LabeledStatResponse> Skills);
+    IReadOnlyList<LabeledStatResponse> Skills,
+    IReadOnlyList<DefLabelResponse> Traits);
 
 internal sealed record StaffMemberResponse(
     string Id,
@@ -257,7 +258,8 @@ internal static class StaffingMapper
                 applicant.Person.IsParent,
                 applicant.HourlyWageAsk,
                 rules is null ? 0f : Staffing.MonthlyBase(rules, applicant.HourlyWageAsk),
-                StrongSkills(applicant.Person, catalog, locale)))
+                SkillsOf(applicant.Person, catalog, locale),
+                TraitsOf(applicant.Person, catalog, locale)))
             .ToArray();
 
         var staff = roster.People
@@ -290,12 +292,11 @@ internal static class StaffingMapper
         return new StaffingResponse(allocated, payroll, remaining, uncovered, applicants, staff, positions, subjects);
     }
 
-    private static IReadOnlyList<LabeledStatResponse> StrongSkills(Person person, DefCatalog? catalog, string locale)
+    private static IReadOnlyList<LabeledStatResponse> SkillsOf(Person person, DefCatalog? catalog, string locale)
     {
         return person.Skills
             .OrderByDescending(pair => pair.Value)
             .ThenBy(pair => pair.Key, StringComparer.Ordinal)
-            .Take(3)
             .Select(pair => new LabeledStatResponse(
                 pair.Key,
                 catalog is not null && catalog.Skills.TryGetValue(pair.Key, out var def)
@@ -305,6 +306,17 @@ internal static class StaffingMapper
             .ToArray();
     }
 
+    private static IReadOnlyList<DefLabelResponse> TraitsOf(Person person, DefCatalog? catalog, string locale)
+    {
+        return person.Traits
+            .Select(name => new DefLabelResponse(
+                name,
+                catalog is not null && catalog.Traits.TryGetValue(name, out var def)
+                    ? catalog.Label(locale, def)
+                    : name))
+            .ToArray();
+    }
+
     private static StaffMemberResponse Member(
         Person person,
         Roster roster,