feat: add SonarQube code quality scan stage to pipeline

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

Jenkinsfile

@@ -19,6 +19,14 @@ def executeBuildPush() {
     }
 }
 
+def executeScanCodeQuality() {
+    stage('Scan Code Quality') {
+        container('node') {
+            scanCodeQuality(projectKey: 'tictactoe')
+        }
+    }
+}
+
 def executeBumpChart() {
     stage('Bump Helm Chart') {
         container('tools') {
@@ -43,26 +51,31 @@ podTemplate(yaml: homelabK8sAgent(withTools: true)) {
 
             BranchStrategy.featureStrategy(env.BRANCH_NAME) {
                 executeInstallTest()
+                executeScanCodeQuality()
                 executeBuildPush()
             }
 
             BranchStrategy.developStrategy(env.BRANCH_NAME) {
                 executeInstallTest()
+                executeScanCodeQuality()
                 executeBuildPush()
             }
 
             BranchStrategy.mainStrategy(env.BRANCH_NAME) {
                 executeInstallTest()
+                executeScanCodeQuality()
                 executeBuildPush()
             }
 
             BranchStrategy.releaseStrategy(env.BRANCH_NAME) {
                 executeInstallTest()
+                executeScanCodeQuality()
                 executeBuildPush()
             }
 
             BranchStrategy.hotfixStrategy(env.BRANCH_NAME) {
                 executeInstallTest()
+                executeScanCodeQuality()
                 executeBuildPush()
             }
         }