feat: import leftover student fields into notes and show them on the roster

Store leftover CSV columns on hidden student notes, move catalog import to /events/import, and persist Students index columns from Chapter Settings.

Co-authored-by: Cursor <cursoragent@cursor.com>

Tests/Services/NoteNamingService_Tests.cs

@@ -0,0 +1,28 @@
+using Core.Services;
+
+namespace Tests.Services;
+
+[TestFixture]
+public class NoteNamingService_Tests
+{
+    private readonly NoteNamingService _service = new();
+
+    [Test]
+    public void GetStudentNoteTitle_UsesStablePrefix()
+    {
+        Assert.That(_service.GetStudentNoteTitle(42), Is.EqualTo("#Student:42"));
+    }
+
+    [Test]
+    public void IsStudentNote_AndParseId()
+    {
+        Assert.That(_service.IsStudentNote("#Student:12"), Is.True);
+        Assert.That(_service.IsStudentNote("#Students"), Is.False);
+        Assert.That(_service.TryParseStudentNoteId("#Student:12", out var id), Is.True);
+        Assert.That(id, Is.EqualTo(12));
+        Assert.That(_service.TryParseStudentNoteId("#Event Ranking", out _), Is.False);
+        Assert.That(_service.IsStudentNote(null), Is.False);
+        Assert.That(_service.TryParseStudentNoteId("#Student:", out _), Is.False);
+        Assert.That(_service.IsPageNote("#Student:12"), Is.True);
+    }
+}

Tests/Services/StudentNotesImportPlan_Tests.cs

@@ -0,0 +1,64 @@
+using Core.Models;
+using Core.Notes;
+using Core.Services;
+using Tests.Builders;
+
+namespace Tests.Services;
+
+[TestFixture]
+public class StudentNotesImportPlan_Tests
+{
+    [SetUp]
+    public void SetUp()
+    {
+        BuilderExtensions.ResetAllBuilders();
+    }
+
+    [Test]
+    public void Create_SkipsUnchanged_CreatesAndUpdatesChanged()
+    {
+        var aria = StudentBuilder.Create("Aria", "Chittenden").Build();
+        var blake = StudentBuilder.Create("Blake", "Nguyen").Build();
+        var casey = StudentBuilder.Create("Casey", "Ortiz").Build();
+
+        var firstWrite = ImportedFieldsTable.Merge(null, [new ImportedField("Application", "Yes")]);
+        var unchanged = ImportedFieldsTable.Merge(firstWrite.Markdown, [new ImportedField("Application", "Yes")]);
+        var created = ImportedFieldsTable.Merge(null, [new ImportedField("Interview Time", "3:20-3:35")]);
+        var updated = ImportedFieldsTable.Merge(
+            ImportedFieldsTable.Merge(null, [new ImportedField("Application", "Yes")]).Markdown,
+            [new ImportedField("Application", "")]);
+
+        var parseResult = new StudentNotesImportResult
+        {
+            Matches =
+            [
+                Match(aria, unchanged),
+                Match(blake, created),
+                Match(casey, updated)
+            ]
+        };
+
+        HashSet<int> existingNoteIds = [casey.Id];
+        var actions = StudentNotesImportPlan.Create(parseResult, existingNoteIds);
+
+        Assert.That(actions, Has.Count.EqualTo(2));
+        Assert.That(actions.Any(a => a.StudentId == aria.Id), Is.False);
+        Assert.That(actions.Single(a => a.StudentId == blake.Id).Kind, Is.EqualTo(StudentNotePersistKind.Create));
+        Assert.That(actions.Single(a => a.StudentId == casey.Id).Kind, Is.EqualTo(StudentNotePersistKind.Update));
+        Assert.That(actions.Single(a => a.StudentId == casey.Id).Markdown, Is.EqualTo(updated.Markdown));
+    }
+
+    [Test]
+    public void Create_EmptyMatches_ReturnsNoActions()
+    {
+        var actions = StudentNotesImportPlan.Create(new StudentNotesImportResult(), new HashSet<int>());
+        Assert.That(actions, Is.Empty);
+    }
+
+    private static StudentNotesImportMatch Match(Core.Entities.Student student, ImportedFieldsMergeResult merge) =>
+        new()
+        {
+            Student = student,
+            Merge = merge
+        };
+}