Add Hook tests and docs

[ChiragAgg5k]

Summary

• add Hook unit tests for action/groups/params/injections and ordering
• document Hook usage and correct package metadata in README
• include Hook class file

Testing

• not run (not requested)

Summary by CodeRabbit

• New Features

  • Introduced Hooks functionality for managing lifecycle events in the Dependency Injection system

• Documentation

  • Added Hooks usage examples to documentation
  • Updated PHP requirement to 8.2+
  • Refreshed library references throughout

• Tests

  • Added comprehensive test coverage for the new Hooks feature

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Walkthrough

This pull request introduces the Utopia DI package Hook class, a new lifecycle hook management system for dependency injection. The Hook class provides chainable methods to configure actions, groups, injections, and parameters with metadata including validators, defaults, and ordering. Documentation is updated to reflect the package name change from Utopia HTTP to Utopia DI, PHP version requirement updated to 8.2+, and comprehensive test coverage is added for the new Hook functionality.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 64.29% 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 reflects the main changes: adding Hook tests and updating documentation/README.

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[lohanidamodar]

are we moving hook from https://github.com/utopia-php/servers/blob/main/src/Servers/Hook.php to DI or are we making duplicate implementation? Where should the hook be?