FIX(deploy): add nodeSelector for master

- Add nodeSelector for master node scheduling
- Fix MountVolume.SetUp failure for /home/ubuntu/Projects

deploy/k8s/base/deployment.yaml

@@ -74,6 +74,8 @@ spec:
         volumeMounts:
         - name: projects
           mountPath: /mnt/projects
+      nodeSelector:
+        kubernetes.io/hostname: mayne-vcn  # Only run on master node where Projects directory exists
       volumes:
       - name: projects
         hostPath:

deploy/k8s/overlays/prod/kustomization.yaml

@@ -15,5 +15,5 @@ commonLabels:
 # 이미지 태그 설정 (ArgoCD Image Updater가 자동으로 업데이트)
 images:
   - name: gitea0213.kro.kr/bluemayne/mas
-    newTag: main-sha-839ddd6bdeccfd74c0caa8299cd161751b0765aa
+    newTag: main-sha-c85c4eff4b228f88c6a748ca165ed396e51a09b2