Add Base32 conversion utilities

[kduma]

Summary

• add a Base32 utility with RFC 4648-compatible encoding/decoding using the default alphabet
• expose Base32 conversions through the BinaryString class
• cover the new behaviour with vectors and round-trip unit tests

Testing

• composer test (fails: phpunit binary unavailable in environment)

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https://chatgpt.com/codex/tasks/task_e_68cbce3db39c8332ad7e9ef53e531fd5

[github-actions]

🔍 Test Results - PHP 8.4

✅ Code Style Check Passed

❌ Tests Failed

Some tests are failing. Please check the workflow run for details.

❌ Code Coverage: 91.67% (Required: 100%)

Code coverage requirement not met. Please add tests to achieve 100% coverage.

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This comment was automatically generated by the test workflow.

[Copilot]

Pull Request Overview

This PR adds Base32 encoding and decoding functionality with RFC 4648 compatibility, implementing a new Base32 utility class and integrating it with the existing BinaryString class.

• Implements a configurable Base32 encoder/decoder with default RFC 4648 alphabet
• Adds Base32 conversion methods to BinaryString class for seamless integration
• Provides comprehensive test coverage with RFC vectors and round-trip validation

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/Base32.php	New utility class implementing Base32 encoding/decoding with configurable alphabet support
src/BinaryString.php	Adds toBase32() and fromBase32() methods to integrate Base32 functionality
tests/Base32Test.php	Comprehensive test suite covering RFC vectors, round-trip tests, and edge cases

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[kduma]

@codex review

[Copilot]

Pull Request Overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

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[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. 🎉

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