GitHub Actions CI/CD 파이프라인 구축 완료

- GitHub Actions 전용 Kustomize 매니페스트 구조 생성
- 환경별(dev/staging/prod) Overlay 및 Patch 파일 작성
- SonarQube 코드 품질 분석 통합
- Docker 이미지 빌드 및 Azure Container Registry 푸시
- Kubernetes 자동 배포 워크플로우 구성
- 수동 배포 스크립트 및 구축 가이드 문서 추가

주요 기능:
- 자동 배포: Push/PR 시 dev 환경 자동 배포
- 수동 배포: 환경 선택 가능한 워크플로우 트리거
- 환경별 최적화: dev(1 replica), staging(2 replicas), prod(3 replicas)
- 보안 설정: staging/prod HTTPS, JWT 토큰 유효시간 조정
- 롤백 지원: GitHub Actions, kubectl, 수동 스크립트

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

deployment/cicd/kustomize/base/kustomization.yaml

@@ -1,53 +0,0 @@
-apiVersion: kustomize.config.k8s.io/v1beta1
-kind: Kustomization
-
-metadata:
-  name: phonebill-base
-
-resources:
-
-  # Common resources
-  - common/cm-common.yaml
-  - common/secret-common.yaml
-  - common/secret-imagepull.yaml
-  - common/ingress.yaml
-
-  # api-gateway
-  - api-gateway/deployment.yaml
-  - api-gateway/service.yaml
-  - api-gateway/cm-api-gateway.yaml
-
-  # user-service
-  - user-service/deployment.yaml
-  - user-service/service.yaml
-  - user-service/cm-user-service.yaml
-  - user-service/secret-user-service.yaml
-  
-  # bill-service
-  - bill-service/deployment.yaml
-  - bill-service/service.yaml
-  - bill-service/cm-bill-service.yaml
-  - bill-service/secret-bill-service.yaml
-  
-  # product-service
-  - product-service/deployment.yaml
-  - product-service/service.yaml
-  - product-service/cm-product-service.yaml
-  - product-service/secret-product-service.yaml
-  
-  # kos-mock
-  - kos-mock/deployment.yaml
-  - kos-mock/service.yaml
-  - kos-mock/cm-kos-mock.yaml
-
-images:
-  - name: acrdigitalgarage01.azurecr.io/phonebill/api-gateway
-    newTag: latest
-  - name: acrdigitalgarage01.azurecr.io/phonebill/user-service
-    newTag: latest
-  - name: acrdigitalgarage01.azurecr.io/phonebill/bill-service
-    newTag: latest
-  - name: acrdigitalgarage01.azurecr.io/phonebill/product-service
-    newTag: latest
-  - name: acrdigitalgarage01.azurecr.io/phonebill/kos-mock
-    newTag: latest