init: fork of kejilion/sh with certbot host-network fix

- Replace 'docker run -p 80:80' with '--network host' for certbot standalone HTTP-01 to avoid timeout in environments where Docker NAT port-publish breaks LE inbound traffic but host port 80 is reachable.
- Applies to kejilion.sh (all locale variants) and auto_cert_renewal.sh.
- README install command points to this Gitea mirror.

custom_mysql_config.cnf

@@ -0,0 +1,45 @@
+[mysqld]
+
+# 连接和线程管理
+max_connections = 2048
+thread_cache_size = 512
+interactive_timeout = 30
+wait_timeout = 30
+
+# 查询缓存（MySQL8废除Query Cache，不配置）
+# no query_cache_size or query_cache_type needed
+
+# InnoDB设置
+innodb_buffer_pool_size = 4096M            # ⭐如果内存允许，给到一半RAM，数据库读性能暴涨
+innodb_buffer_pool_instances = 4            # ⭐分片更细（>2G建议4-8分片）
+innodb_log_buffer_size = 32M                # ⭐更大事务写更稳
+innodb_redo_log_capacity = 128M             # ⭐防止大事务日志爆满
+innodb_lock_wait_timeout = 30
+innodb_file_per_table = 1
+innodb_flush_log_at_trx_commit = 1          # ⭐坚持ACID，不放松一致性
+innodb_io_capacity = 2000                   # ⭐如果是NVMe磁盘可以调高（>SSD）
+innodb_io_capacity_max = 4000
+
+# 缓存和表限制
+table_open_cache = 4000                     # ⭐动态表多的网站，加大打开表缓存
+open_files_limit = 65535                    # ⭐极限设置（注意宿主机ulimit）
+tmp_table_size = 64M                        # ⭐调大，减少临时表落磁盘
+max_heap_table_size = 64M                   # ⭐配合tmp_table_size，一起调大
+max_allowed_packet = 64M                    # ⭐适配大SQL（比如大BLOB字段）
+
+# 缓冲区大小
+sort_buffer_size = 8M                       # ⭐适配中大型ORDER BY场景
+read_buffer_size = 2M
+join_buffer_size = 4M                       # ⭐稍微放大Join场景效率更高
+
+# 日志管理
+log_error_verbosity = 3                     # ⭐详细日志，便于追查慢问题
+slow_query_log = 1                           # ⭐打开慢查询日志
+slow_query_log_file = /var/log/mysql/slow.log
+long_query_time = 1                         # ⭐超过1秒算慢查询
+log_queries_not_using_indexes = 1           # ⭐记录无索引扫描
+
+# 其他
+sql_mode=STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION
+performance_schema=ON                       # ⭐生产环境推荐打开，监控分析好用
+disable-log-bin