Document complex type property configuration via lambda chaining

[roji]

Add a what's new section for EF Core 11 documenting dotnet/efcore#31236: configuring complex type properties directly via chained member access in the lambda expression.

Shows the previous verbose pattern:

modelBuilder.Entity<MyEntity>()
    .ComplexProperty(e => e.Details)
    .Property(d => d.Description)
    .HasMaxLength(500);

And the new shorter approach:

modelBuilder.Entity<MyEntity>()
    .Property(e => e.Details.Description)
    .HasMaxLength(500);

Including an example with nested complex types.

[Copilot]

Pull request overview

Adds a new “What’s New” documentation section for EF Core 11 describing the ability to configure complex type properties by using chained member access directly in the Property(...) lambda, including a nested complex type example.

Changes:

• Document the previous ComplexProperty(...).Property(...) configuration pattern.
• Document the new shorter Property(e => e.Complex.Prop) configuration pattern.
• Add an additional example demonstrating nested complex types.

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 2 comments.