feat: add a Tools page printer for note merge and print presets

Chapter officers can merge a markdown note onto filtered students, teams, or events and save the recipe. Extra student-note columns are additional fields (any ## … fields heading) so they work as print tokens whether imported or typed by hand.

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

Tests/Notes/ImportedFieldsTable_Tests.cs

@@ -47,6 +47,34 @@ public class ImportedFieldsTable_Tests
         Assert.That(fields.Single(f => f.Name == "Application").Value, Is.EqualTo("Yes"));
         Assert.That(fields.Single(f => f.Name == "Teacher Rec 1").Value, Is.EqualTo("Fuqua"));
         Assert.That(result.Markdown, Does.Contain("Freeform note"));
+        Assert.That(result.Markdown, Does.Contain(ImportedFieldsTable.Heading));
+        Assert.That(result.Markdown, Does.Not.Contain("## Imported fields"));
+    }
+
+    [Test]
+    public void ParseFields_ReadsAnyFieldsHeading()
+    {
+        foreach (var heading in new[] { "## Additional fields", "## Imported fields", "## Extra fields" })
+        {
+            var markdown = $"""
+                {heading}
+
+                | Field | Value |
+                | --- | --- |
+                | Allergies | peanuts |
+                """;
+
+            Assert.That(ImportedFieldsTable.GetFieldValue(markdown, "Allergies"), Is.EqualTo("peanuts"), heading);
+        }
+
+        var otherHeading = """
+            ## Advisor comments
+
+            | Field | Value |
+            | --- | --- |
+            | Allergies | peanuts |
+            """;
+        Assert.That(ImportedFieldsTable.GetFieldValue(otherHeading, "Allergies"), Is.Null);
     }
 
     [Test]