feat: decouple Laravel and CakePHP installers, remove SonarQube artifacts, and enforce complete unit testing standards

- Decouple framework installation: add install-laravel.sh and install-cakephp.sh, isolate skills and docs per framework, and auto-clean leftover artifacts
- Remove all SonarQube configs, templates, and references
- Enforce comprehensive test completeness: 100% public methods, edge cases, full branch coverage, exception paths, and state assertions
- Replace all placeholder assertions in PHPUnit and Pest templates with full realistic implementations
- Rename and update 10-comprehensive-test-coverage-guide.md

templates/cakephp/configs/sonar-project.properties.template

@@ -1,22 +0,0 @@
-# ==============================================================================
-# SonarQube Configuration for CakePHP Unit Testing (> 90% Coverage Target)
-# ==============================================================================
-
-sonar.projectKey=cakephp-app
-sonar.projectName=CakePHP Application
-sonar.projectVersion=1.0
-
-# Đường dẫn nguồn và test
-sonar.sources=src
-sonar.tests=tests
-
-# Báo cáo Code Coverage sinh ra từ PHPUnit / bin/cake test app
-sonar.php.coverage.reportPaths=coverage.xml
-sonar.php.tests.reportPath=phpunit-report.xml
-
-# Inclusions: Tập trung đo độ phủ các tầng nghiệp vụ cốt lõi
-sonar.coverage.inclusions=src/Model/Table/**,src/Model/Entity/**,src/Controller/**,src/Service/**,src/Command/**,src/Controller/Component/**,src/Middleware/**,src/Mailer/**,src/Form/**,src/Model/Behavior/**,src/View/Helper/**
-
-# Exclusions: Loại trừ framework boilerplate, console installer, configs để đảm bảo Coverage > 90%
-sonar.coverage.exclusions=src/Console/Installer.php,src/Application.php,src/View/AppView.php,config/**,bin/**,plugins/**,tests/**,templates/**
-sonar.cpd.exclusions=tests/**