Add #[SuppressQueryDetection] attribute to suppress N+1 detection per method

[dingyaguang117]

Summary

• Add a PHP 8 #[SuppressQueryDetection] attribute that can be placed on any method to suppress N+1 query detection for all queries triggered within it (including nested calls)
• Gracefully degrade on PHP 7.x — the attribute is silently ignored when PHP_VERSION_ID < 80000
• Add 6 test cases covering: basic suppression, morph relations, multiple relations, nested calls, and coexistence with unsuppressed methods

Motivation

The existing except config requires whitelisting by model + relation pair, which is too coarse-grained. In practice, developers often need to suppress detection for a specific method (e.g. an admin controller action, a background job, or a legacy endpoint) rather than globally whitelisting a
relation.

This attribute-based approach gives fine-grained, code-level control — just annotate the method:

  use BeyondCode\QueryDetector\Attributes\SuppressQueryDetection;

  #[SuppressQueryDetection]
  public function dashboard()
  {
      // N+1 queries here will not be reported
  }