feat: Set Redis as default cache and update dify-web to v1.8.0 (#43)

- Change default cache option from MySQL to Redis in setup-mysql-env.sh
- Update dify-web version from 1.7.0 to 1.8.0 in docker-compose-redis.yaml
- Ensure version consistency across all docker-compose files

Author: yuanoOo

docker/docker-compose-redis.yaml

@@ -608,7 +608,7 @@ services:
 
   # Frontend web application.
   web:
-    image: langgenius/dify-web:1.7.0
+    image: langgenius/dify-web:1.8.0
     restart: always
     environment:
       CONSOLE_API_URL: ${CONSOLE_API_URL:-}

docker/setup-mysql-env.sh

@@ -218,7 +218,7 @@ update_env "VECTOR_STORE" "oceanbase"
 update_env "PIP_MIRROR_URL" "https://pypi.tuna.tsinghua.edu.cn/simple"
 
 # Redis configuration
-USE_REDIS=$(get_user_input "Use Redis for caching?  Y or N:" "N")
+USE_REDIS=$(get_user_input "Use Redis for caching?  Y or N:" "Y")
 
 if [ "$USE_REDIS" == "Y" ]; then
     print_message "info" "Configuring Redis cache..."