v.1.1.1

• GitHub Actions CI workflow (PHPUnit, code style, PHPStan, and Psalm on PHP 8.2 and 8.3)
• Minimal tests/test_app/ TestApp for integration tests that need WWW_ROOT
• composer generate-test-image script to regenerate the ImageHelper test fixture
• AGENTS.md contributor guide for plugin layout, conventions, and quality checks

Changed

• Minimum PHP version is now 8.2 (was 8.1)
• ImageHelper auto driver selection priority is vips → imagick → gd (aligned with documentation)
• composer check now runs static analysis (composer analyse) in addition to tests and code style

Documentation

• README Quick Start includes FlagHelper
• Security notes for template elements (inline JS selectors must be static/trusted)
• Expanded testing documentation and ImageHelper loading examples