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.

tests/HSchool.AppHost.Tests/StaffingApiTests.cs

@@ -29,14 +29,23 @@ public class StaffingApiTests(AppHostFixture fixture)
         Assert.Equal(100_000f, staffing.Allocated);
         Assert.Equal(0f, staffing.Payroll);
         Assert.Equal(100_000f, staffing.Remaining);
-        Assert.Equal(12, staffing.Applicants.Count);
+        Assert.Equal(32, staffing.Applicants.Count);
         Assert.Empty(staffing.Staff);
         Assert.Contains(staffing.Uncovered, subject => subject.DefName == "Mathematics");
         Assert.Contains(staffing.Uncovered, subject => subject.DefName == "PrimarySchool");
         Assert.NotEmpty(staffing.Positions);
         Assert.Contains(staffing.Positions, position => position.DefName == "Teacher");
         Assert.Contains(staffing.Subjects, subject => subject.DefName == "Mathematics");
-        Assert.All(staffing.Applicants, applicant => Assert.NotEmpty(applicant.Skills));
+        Assert.All(
+            staffing.Applicants,
+            applicant =>
+            {
+                Assert.Contains(applicant.Skills, skill => skill.Id == "Communication");
+                Assert.Contains(
+                    applicant.Skills,
+                    skill => skill.Id is "RussianLanguage" or "BelarusianLanguage" or "UkrainianLanguage");
+                Assert.All(applicant.Skills, skill => Assert.False(string.IsNullOrWhiteSpace(skill.Value)));
+            });
     }
 
     [Fact]
@@ -135,6 +144,12 @@ public class StaffingApiTests(AppHostFixture fixture)
                 $"/api/schools/{school.Id}/staff/hire",
                 new { personId = applicant.Id, position = "Teacher" },
                 TestContext.Current.CancellationToken);
+            if (response.StatusCode == HttpStatusCode.Conflict)
+            {
+                Assert.Equal("payroll-exceeded", await ProblemCodeAsync(response));
+                break;
+            }
+
             response.EnsureSuccessStatusCode();
             staffing = await response.Content.ReadFromJsonAsync<StaffingResponse>(TestContext.Current.CancellationToken);
             Assert.NotNull(staffing);
@@ -143,7 +158,7 @@ public class StaffingApiTests(AppHostFixture fixture)
         Assert.Equal(100_000f, staffing.Allocated);
         Assert.True(staffing.Payroll > 0f);
         Assert.True(staffing.Payroll <= staffing.Allocated);
-        Assert.Equal(12, staffing.Staff.Count);
+        Assert.NotEmpty(staffing.Staff);
     }
 
     [Fact]
@@ -224,9 +239,23 @@ public class StaffingApiTests(AppHostFixture fixture)
         var staffing = await GetStaffingAsync(client, school.Id);
         while (staffing.Applicants.Count > 0)
         {
-            staffing = await HireAsync(client, school.Id, staffing.Applicants[0].Id, "Teacher");
+            var applicant = staffing.Applicants[0];
+            using var response = await client.PostAsJsonAsync(
+                $"/api/schools/{school.Id}/staff/hire",
+                new { personId = applicant.Id, position = "Teacher" },
+                TestContext.Current.CancellationToken);
+            if (response.StatusCode == HttpStatusCode.Conflict)
+            {
+                break;
+            }
+
+            response.EnsureSuccessStatusCode();
+            staffing = await response.Content.ReadFromJsonAsync<StaffingResponse>(TestContext.Current.CancellationToken);
+            Assert.NotNull(staffing);
         }
 
+        Assert.NotEmpty(staffing.Staff);
+
         var subjects = staffing.Subjects.Select(subject => subject.DefName).ToArray();
         Assert.NotEmpty(subjects);
 
@@ -327,7 +356,8 @@ public class StaffingApiTests(AppHostFixture fixture)
         bool IsParent,
         float HourlyWageAsk,
         float MonthlyBase,
-        IReadOnlyList<LabeledStatResponse> Skills);
+        IReadOnlyList<LabeledStatResponse> Skills,
+        IReadOnlyList<DefLabelResponse> Traits);
 
     private sealed record LabeledStatResponse(string Id, string Label, string Value);