Fix missing Enrollment ToTable mapping in cu50 SchoolContext (#37381)

* Initial plan

* Fix missing Enrollment ToTable mapping in cu50 SchoolContext OnModelCreating

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

Author: Copilot

aspnetcore/data/ef-rp/complex-data-model.md

@@ -501,7 +501,7 @@ The `Enrollment` join entity defines its own PK, so duplicates of this sort are
 
 Update `Data/SchoolContext.cs` with the following code:
 
-[!code-csharp[](intro/samples/cu50/Data/SchoolContext.cs?name=snippet_SS&highlight=15-17,21-28)]
+[!code-csharp[](intro/samples/cu50/Data/SchoolContext.cs?name=snippet_SS&highlight=15-17,21-29)]
 
 <!-- TODO review -->
 The preceding code adds the new entities and configures the many-to-many relationship between the `Instructor` and `Course` entities.

aspnetcore/data/ef-rp/intro/samples/cu50/Data/SchoolContext.cs

@@ -24,6 +24,7 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
                 .HasMany(c => c.Instructors)
                 .WithMany(i => i.Courses);
             modelBuilder.Entity<Student>().ToTable(nameof(Student));
+            modelBuilder.Entity<Enrollment>().ToTable("Enrollment");
             modelBuilder.Entity<Instructor>().ToTable(nameof(Instructor));
             modelBuilder.Entity<Department>()
                 .Property(d => d.ConcurrencyToken)
@@ -58,6 +59,7 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
                 .HasMany(c => c.Instructors)
                 .WithMany(i => i.Courses);
             modelBuilder.Entity<Student>().ToTable(nameof(Student));
+            modelBuilder.Entity<Enrollment>().ToTable("Enrollment");
             modelBuilder.Entity<Instructor>().ToTable(nameof(Instructor));
         }
     }