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/phpunit/TableTest.template.php

@@ -121,11 +121,8 @@ class {{TABLE_NAME}}TableTest extends TestCase
         ]);
         $result = $this->{{VARIABLE_NAME}}->save($entity2);
 
-        // Assert - Rule should fail if unique rule exists
-        if (!empty($entity2->getErrors())) {
-            $this->assertFalse($result);
-        } else {
-            $this->assertTrue(true);
-        }
+        // Assert - Rule should fail when duplicate unique field is saved
+        $this->assertFalse($result);
+        $this->assertNotEmpty($entity2->getErrors());
     }
 }