REFACTOR(db): migrate to CloudNativePG database

- Migrate database to CloudNativePG operator
- Update connection configuration

deploy/k8s/base/deployment.yaml

@@ -41,12 +41,12 @@ spec:
           value: "https://api.groq.com/openai/v1"
         # Chainlit uses asyncpg directly (not SQLAlchemy)
         - name: CHAINLIT_DATABASE_URL
-          value: "postgresql://bluemayne:$(POSTGRES_PASSWORD)@postgresql-primary.postgresql.svc.cluster.local:5432/mas"
+          value: "postgresql://bluemayne:$(POSTGRES_PASSWORD)@postgresql-cnpg-rw.postgresql-cnpg.svc.cluster.local:5432/mas"
         # SQLAlchemy format (if needed)
         - name: DATABASE_URL
-          value: "postgresql://bluemayne:$(POSTGRES_PASSWORD)@postgresql-primary.postgresql.svc.cluster.local:5432/mas"
+          value: "postgresql://bluemayne:$(POSTGRES_PASSWORD)@postgresql-cnpg-rw.postgresql-cnpg.svc.cluster.local:5432/mas"
         - name: POSTGRES_HOST
-          value: "postgresql-primary.postgresql.svc.cluster.local"
+          value: "postgresql-cnpg-rw.postgresql-cnpg.svc.cluster.local"
         - name: POSTGRES_PORT
           value: "5432"
         - name: POSTGRES_USER

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-c85c4eff4b228f88c6a748ca165ed396e51a09b2
+    newTag: main-sha-9fe49be3a025f96835407dff45819fab6af96e8e