docs: 增加容器部署文档

docker/mysql/.gitignore

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+data/*
+logs/*

docker/mysql/conf/my.cnf

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+#
+# The MySQL database server configuration file.
+#
+# One can use all long options that the program supports.
+# Run program with --help to get a list of available options and with
+# --print-defaults to see which it would actually understand and use.
+#
+# For explanations see
+# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
+
+# Here is entries for some specific programs
+# The following values assume you have at least 32M ram
+
+[mysqld]
+#
+# * Basic Settings
+#
+#user		= mysql
+# pid-file	= /var/run/mysqld/mysqld.pid
+# socket	= /var/run/mysqld/mysqld.sock
+# port		= 3306
+# datadir	= /var/lib/mysql
+
+
+# If MySQL is running as a replication slave, this should be
+# changed. Ref https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_tmpdir
+# tmpdir		= /tmp
+#
+# Instead of skip-networking the default is now to listen only on
+# localhost which is more compatible and is not less secure.
+bind-address		= 0.0.0.0
+mysqlx-bind-address	= 0.0.0.0

docker/mysql/docker-compose.yaml

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+version: '3'
+services:
+  # 后端 API 程序
+  mysql:
+    image: mysql:8.0.33
+    container_name: chatgpt-plus-mysql
+    command: --default-authentication-plugin=mysql_native_password
+    restart: always
+    environment:
+      - MYSQL_ROOT_PASSWORD=12345678
+    ports:
+      - "3307:3306"
+    volumes:
+      - ./conf/my.cnf:/etc/mysql/my.cnf
+      - ./data:/var/lib/mysql
+      - ./logs:/var/log/mysql
+
+
+