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/configmap.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: tasteby-config
+  namespace: tasteby
+data:
+  REDIS_HOST: "redis"
+  REDIS_PORT: "6379"
+  REDIS_DB: "0"
+  ORACLE_WALLET: "/etc/oracle/wallet"
+  OCI_CHAT_ENDPOINT: "https://inference.generativeai.us-ashburn-1.oci.oraclecloud.com"
+  OCI_GENAI_ENDPOINT: "https://inference.generativeai.us-chicago-1.oci.oraclecloud.com"
+  OCI_EMBED_MODEL_ID: "cohere.embed-v4.0"
+  GOOGLE_CLIENT_ID: "635551099330-2l003d3ernjmkqavd4f6s78r8r405iml.apps.googleusercontent.com"