Improve set() defaults and refresh README examples

[ChiragAgg5k]

Summary

• default Container::set() dependencies to an empty array for zero-dependency factories
• add test coverage for calling set() without the third argument
• update README examples to match the current container API and child-container usage

Testing

• php ./vendor/bin/phpunit tests/ContainerTest.php

Summary by CodeRabbit

• Documentation

  • Updated README with simplified factory registration examples, demonstrating optional dependencies parameter and direct closure-based registration syntax.

• Tests

  • Added test case confirming the dependencies array parameter defaults to an empty list, allowing factories to be registered with minimal required arguments.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: c61324e0-42b4-4327-9c1a-90b5bdcfd2d5

📥 Commits

Reviewing files that changed from the base of the PR and between 72e1a3e and d2be6ae.

📒 Files selected for processing (3)

• README.md
• src/DI/Container.php
• tests/ContainerTest.php

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Walkthrough

The changes make the $dependencies parameter optional in the Container's set() method by providing a default empty array. The README documentation is updated to reflect this shorthand functional factory registration pattern using direct closures rather than explicit Dependency objects. A new test case verifies that the set() method works correctly when called without the optional dependencies parameter.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

✨ Finishing Touches

• 📝 Generate docstrings (stacked PR)
• 📝 Generate docstrings (commit on current branch)

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/default-empty-dependencies-and-readme

📝 Coding Plan

• Generate coding plan for human review comments

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