FIX(app): fix PostgreSQL secret name

- Change postgresql-root-password to postgresql-bluemayne-password
- Use actually existing secret

deploy/k8s/base/deployment.yaml

@@ -54,7 +54,7 @@ spec:
         - name: POSTGRES_PASSWORD
           valueFrom:
             secretKeyRef:
-              name: postgresql-root-password
+              name: postgresql-bluemayne-password
               key: password
         - name: GITEA_TOKEN
           valueFrom:

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-33fd8328c5910c234c1c6a5b4185abf9b8e8da2f
+    newTag: main-sha-e5ac54f869099f9e8b27618760c411a30e4372b7