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>

Data/Configurations/PrintPresetConfiguration.cs

@@ -0,0 +1,35 @@
+using Core.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Data.Configurations;
+
+public class PrintPresetConfiguration : IEntityTypeConfiguration<PrintPreset>
+{
+    public void Configure(EntityTypeBuilder<PrintPreset> builder)
+    {
+        builder.HasKey(p => p.Id);
+
+        builder.Property(p => p.Name)
+            .IsRequired()
+            .HasMaxLength(100);
+
+        builder.HasIndex(p => p.Name)
+            .IsUnique();
+
+        builder.Property(p => p.EntityType)
+            .HasConversion<string>()
+            .HasMaxLength(32)
+            .IsRequired();
+
+        builder.Property(p => p.FiltersJson)
+            .IsRequired()
+            .HasColumnType("TEXT");
+
+        builder.HasOne(p => p.Note)
+            .WithMany()
+            .HasForeignKey(p => p.NoteId)
+            .OnDelete(DeleteBehavior.Restrict)
+            .IsRequired();
+    }
+}