Prepare for OSS release v0.0.1

Version updates:
- Set version to 0.0.1 across all files
- Update CLI banner, SARIF output, and documentation

New files:
- LICENSE: MIT license
- CHANGELOG.md: Initial changelog with all features
- CONTRIBUTING.md: Contribution guidelines

composer.json enhancements:
- Add version, keywords, homepage, support URLs
- Add authors section
- Add require-dev for PHPUnit

README.md updates:
- Update repository URLs to security-linter/php-laravel
- Update Docker image references

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/DETECTION_RULES.md

@@ -1092,6 +1092,6 @@ php bin/security-lint app/ -l en
 
 ## バージョン
 
-- ドキュメント作成日: 2024
-- 対応 PHP バージョン: 8.0+
+- バージョン: 0.0.1
+- 対応 PHP バージョン: 8.1+
 - 対応 Laravel バージョン: 9.x, 10.x, 11.x