Prepare the V4 status API update

[jgniecki]

Summary

This PR prepares the V4 update for Minecraft Status. It modernizes the runtime/API surface, adds typed status results, improves protocol parsing and exception mapping, strengthens static analysis, and refreshes public documentation.

What changed

• Raised the package to PHP 8.1 and added PHPUnit coverage for client lifecycle behavior.
• Added StatusState, fetch(), typed getResult() result objects, and improved connect() return types.
• Added sub-second timeout support and a testable SRV resolver.
• Split protocol parsing into parser classes and tightened Java, Query, Bedrock, and legacy error handling.
• Added mock socket protocol tests plus opt-in real-server smoke tests.
• Raised PHPStan to level 8.
• Reworked the README into a more useful usage guide and updated author contact headers.

Validation

• composer test
• composer analyse
• composer qa
• composer test-real with a local ignored server list config