REFACTOR(app): use nsenter for host access

- Replace SSH with nsenter for host access
- Simplify host command execution

deploy/k8s/base/deployment.yaml

@@ -15,11 +15,14 @@ spec:
       labels:
         app: mas
     spec:
+      hostPID: true  # 호스트 프로세스 네임스페이스 접근
       serviceAccountName: mas
       containers:
       - name: mas
         image: gitea0213.kro.kr/bluemayne/mas:latest
         imagePullPolicy: Always
+        securityContext:
+          privileged: true  # nsenter 사용을 위한 권한
         ports:
         - containerPort: 8000
           name: http
@@ -70,7 +73,7 @@ spec:
             cpu: "1000m"
         volumeMounts:
         - name: projects
-          mountPath: /app/projects
+          mountPath: /mnt/projects
       volumes:
       - name: projects
         hostPath:

deploy/k8s/overlays/prod/kustomization.yaml

@@ -16,5 +16,5 @@ commonLabels:
 # 이미지 태그 설정 (ArgoCD Image Updater가 자동으로 업데이트)
 images:
   - name: gitea0213.kro.kr/bluemayne/mas
-    newTag: main-sha-761478757e461a432dc761b4c9d9cef8bc811d7b
+    newTag: main-sha-d0fd2a5037d2fc4a31d800a1dfbf9d585aa7534a