Add cuisine subcategory filter, fix remap logic, and add OKE deployment manifests

- Add 파인다이닝/코스 cuisine type to 한식/일식/중식/양식 categories
- Change cuisine filter from flat list to grouped optgroup with subcategories
- Fix remap-foods/remap-cuisine: add jdbcType=CLOB, fix CLOB LISTAGG,
  improve retry logic (3 attempts, batch size 5), add error logging
- Add OKE deployment: Dockerfiles, K8s manifests, deploy.sh, deployment guide
- Add Next.js standalone output for Docker builds

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

k8s/redis-deployment.yaml

@@ -0,0 +1,39 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: redis
+  namespace: tasteby
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+    spec:
+      containers:
+        - name: redis
+          image: redis:7-alpine
+          ports:
+            - containerPort: 6379
+          resources:
+            requests:
+              cpu: 100m
+              memory: 128Mi
+            limits:
+              cpu: 200m
+              memory: 256Mi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis
+  namespace: tasteby
+spec:
+  selector:
+    app: redis
+  ports:
+    - port: 6379
+      targetPort: 6379