Add ClassNameShouldNotEndWithComponentRule

[Kocal]

Q	A
Bug fix?	no
New feature?	yes
Tests pass?	yes
Fixed tickets	Close #...

Proudly vibe-coded

[Copilot]

Pull request overview

This PR adds a new PHPStan rule ClassNameShouldNotEndWithComponentRule that enforces a naming convention for Symfony UX Twig Components. The rule prevents developers from using redundant "Component" suffixes in class names since the #[AsTwigComponent] attribute already identifies the class as a component.

Key Changes

• Implements ClassNameShouldNotEndWithComponentRule to detect and report classes ending with "Component" suffix
• Adds comprehensive test coverage with valid, invalid, and non-component test cases
• Updates README with documentation and examples following existing patterns
• Adds AGENTS.md file with detailed instructions for creating new PHPStan rules in this project

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/Rules/TwigComponent/ClassNameShouldNotEndWithComponentRule.php	Main rule implementation that checks for "Component" suffix in Twig component class names
tests/Rules/TwigComponent/ClassNameShouldNotEndWithComponentRule/ClassNameShouldNotEndWithComponentRuleTest.php	Test suite with violation and no-violation test cases
tests/Rules/TwigComponent/ClassNameShouldNotEndWithComponentRule/Fixture/InvalidComponentName.php	Test fixture demonstrating invalid class name (AlertComponent)
tests/Rules/TwigComponent/ClassNameShouldNotEndWithComponentRule/Fixture/ValidComponentName.php	Test fixture demonstrating valid class name (Alert)
tests/Rules/TwigComponent/ClassNameShouldNotEndWithComponentRule/Fixture/NotAComponent.php	Test fixture for non-component class to ensure rule doesn't trigger
tests/Rules/TwigComponent/ClassNameShouldNotEndWithComponentRule/config/configured_rule.neon	PHPStan configuration for the test environment
README.md	Documentation for the new rule with examples showing both invalid and valid usage
AGENTS.md	Comprehensive guide for AI agents and developers on creating new PHPStan rules in this project

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

The identifier casing is inconsistent with other rules in this codebase. ForbiddenClassPropertyRule uses symfonyUX.twigComponent.forbiddenClassProperty (lowercase 'symfonyUX'), while ForbiddenAttributesPropertyRule uses SymfonyUX.TwigComponent.forbiddenAttributesProperty (uppercase 'SymfonyUX').

This rule follows the lowercase convention, but there should be consistency across all rules. Consider standardizing on one casing pattern (e.g., symfonyUX.twigComponent.classNameShouldNotEndWithComponent).

Suggested change

	->identifier('symfonyUX.twigComponent.classNameShouldNotEndWithComponent')
	->identifier('SymfonyUX.TwigComponent.classNameShouldNotEndWithComponent')