feat: support virtual item detail images and COS access

deploy/hera-prod.yml.example

@@ -12,3 +12,4 @@ hera:
   cos:
     secret-id: "${TENCENT_COS_SECRET_ID}"
     secret-key: "${TENCENT_COS_SECRET_KEY}"
+    public-base-url: "${TENCENT_COS_PUBLIC_BASE_URL:http://101.43.139.56/hera/file/}"