fix: switch to xserver database with UTF-8 data

- Change default database from x_server_mobile to xserver
- Add 007_xserver_init.sql initialization script
- Companies data now correctly encoded in UTF-8:
  - 合塑 (hesu)
  - 新友合 (xinyouhe)
  - 派卡 (paika)
  - 斯玛特 (simate)
  - magic bridge Auto (mbaf)
- Company Feishu apps properly configured

The key fix is to execute SQL directly inside the MySQL container
using heredoc to avoid charset conversion issues during transfer.

Usage:
docker exec 1Panel-mysql-409s mysql -uroot -p'mysql_xEsdPa' --default-character-set=utf8mb4 xserver < 007_xserver_init.sql

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

mysql-utf8fix.cnf

@@ -0,0 +1,16 @@
+# MySQL UTF-8 字符集配置
+# 放到 /etc/mysql/conf.d/ 或 /etc/my.cnf.d/ 目录下
+
+[client]
+default-character-set = utf8mb4
+
+[mysql]
+default-character-set = utf8mb4
+
+[mysqld]
+character-set-server = utf8mb4
+collation-server = utf8mb4_unicode_ci
+init_connect = 'SET NAMES utf8mb4'
+
+# 确保客户端连接使用正确字符集
+skip-character-set-client-handshake = 0