docs: 优化部署、迁移文档、docker增加redis支持

1、优化部署、迁移
2、自动备份命令增加手动备份功能
3、docker部署集成redis

docker-compose.yaml

@@ -1,11 +1,23 @@
 version: '3'
 services:
   xboard:
-    build: 
-      context: .
+    # build: 
+    #   context: .
+    image: ghcr.io/cedar2025/xboard:latest
     volumes:
       - ./:/www/
-      # - ./.env:/www/.env
-      # - ./.docker/.data/:/www/.docker/.data/
-      # - ./config/v2board.php:/www/config/v2board.php
-    network_mode: host
+      - redis-socket:/run/redis-socket # 挂载socket
+    environment:
+      - docker=true #用于给安装脚本判断是否为docker环境
+    depends_on:
+      - redis
+    ports:
+      - 7001:7001
+  redis:
+    build: 
+      context: .docker/services/redis
+    volumes:
+      - ./.docker/.data/redis:/data/ # 挂载redis持久化数据
+      - redis-socket:/run/redis-socket # 挂载socket
+volumes:
+  redis-socket: