chore: 更新docker-compose中的镜像名称

将前端和后端服务的镜像名称从zhagent-front/back更新为zhagent-frontend/backend，保持命名一致性

docker-compose.yml

@@ -34,7 +34,7 @@ services:
       - maxkb-network
 
   maxkb-frontend:
-    image: zhagent-front:latest
+    image: zhagent-frontend:latest
     container_name: maxkb-frontend
     ports:
       - "80:80"
@@ -45,7 +45,7 @@ services:
       - maxkb-web
 
   maxkb-web:
-    image: zhagent-back:latest
+    image: zhagent-backend:latest
     container_name: maxkb-web
     environment:
       MAXKB_CONFIG_TYPE: ENV
@@ -76,7 +76,7 @@ services:
     restart: unless-stopped
 
   maxkb-celery:
-    image: zhagent-back:latest
+    image: zhagent-backend:latest
     container_name: maxkb-celery
     environment:
       MAXKB_CONFIG_TYPE: ENV