V12.0: Modernize package for Laravel 8-12 with bug fixes and tests

- Fix namespace casing, createUniqueRating return type, countNegative return type
- Update composer.json for PHP 8+ and Laravel 8-12 support with auto-discovery
- Replace custom artisan command with publishesMigrations()
- Modernize migration to anonymous class with $table->id()
- Add proper type hints and return types throughout
- Add test suite with 13 tests using orchestra/testbench
- Add GitHub Actions CI workflow
- Update README with modern installation instructions

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

v2.01

V2.01

add support for laravel 8

v1.4

Merge pull request #15 from TartanLeGrand/master

Fixed model functions

Release version

1.3

update reame

1.1.1

Update 2015_10_24_10000_create_ratings_table.php

tag 1.1

Update README.md