feat(attribute): Add HasIntegrity trait and integrity() method to manage integrity attribute for HTML elements.

[terabytesoftw]

Pull Request

Q	A
Is bugfix?	❌
New feature?	✔️
Breaks BC?	❌

Summary by CodeRabbit

Release Notes

• New Features
  • Introduced a new capability to manage the HTML integrity attribute on elements using an immutable API method. This enables Subresource Integrity (SRI) verification on script and link tags, allowing validation of external resource authenticity and integrity.

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📝 Walkthrough

Walkthrough

Introduces a new HasIntegrity trait for managing HTML integrity attributes on elements. Includes the trait implementation, an INTEGRITY enum case, comprehensive unit tests with a data provider, and a changelog entry documenting the addition.

Changes

Cohort / File(s)	Summary
Changelog CHANGELOG.md	Added new entry documenting HasIntegrity trait capability in version 0.5.3.
Core Implementation src/HasIntegrity.php, src/Values/Attribute.php	New trait providing immutable integrity() method delegating to addAttribute() with Attribute::INTEGRITY enum case; enum case added to Attribute class.
Test Suite tests/HasIntegrityTest.php, tests/Support/Provider/IntegrityProvider.php	Test class validating immutability and attribute rendering behavior; data provider supplying test cases covering null, string, and override scenarios.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• feat(attribute): Use package ui-awesome/html-mixin for mixin traits and update related imports accordingly. #16: Centralizes attribute management via addAttribute() standardization and trait integration, directly related to the delegation mechanism used in the new HasIntegrity trait implementation.

Poem

🐰 A trait for integrity, oh what delight!
HTML elements now shine so bright
Subresource safety wrapped up with care
Immutable and clean, beyond compare
The rabbit hops forward with attributes to share! ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 60.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and specifically describes the main change: adding a HasIntegrity trait and integrity() method to manage the integrity attribute for HTML elements, which is reflected in all modified files.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix_mini_15

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