feat(database): forward query builder methods to database models

[osbre]

This PR introduces static select-side query builder methods to IsDatabaseModel, removing the redundant ::select() boilerplate when starting queries.

Before

Book::select()->whereField('title', 'Timeline Taxi')->first();
Book::select()->orderBy('published_at')->limit(10)->all();

After

Book::whereField('title', 'Timeline Taxi')->first();
Book::orderBy('published_at')->limit(10)->all();
Book::whereHas('author', fn ($q) => $q->whereField('name', 'Brent'))->all();

Changes

• Forwarded 39 Select-Side Methods: Methods like where, whereField, whereHas, orderBy, limit, with, join, and pagination helpers can now be called directly statically on models. Each forwarder is a direct delegation to static::select()->....
• Fixed Return Annotations: Updated HasWhereRelationMethods::whereHas() and whereDoesntHave() annotations to ensure proper type inference for the forwarded methods.
• Excluded Methods: Chain-continuation methods (andWhere*, orWhere*) and internal SQL compilation utilities remain builder-only, since neither is meaningful as an opening call.

Tests

No new tests were added. Every forwarded method is already exercised at the builder level in tests/Integration/Database/, and the forwarders add no logic beyond method dispatch. This follows the existing convention of testing behaviour where the builder lives: the sum() and avg() statics are covered in AggregateQueryBuilderTest, not IsDatabaseModelTest.

[osbre]

Regarding the benchmark glitch: #2286

[innocenzi]

Not something I am in favor of personally. select is explicitly creating the request, and it reads well.