Initial commit: Telegram Management System

Full-stack web application for Telegram management
- Frontend: Vue 3 + Vben Admin
- Backend: NestJS
- Features: User management, group broadcast, statistics

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

database/scripts/backup_database.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# 数据库备份脚本
+# 使用方法: ./backup_database.sh
+
+# 配置
+DB_HOST="127.0.0.1"
+DB_USER="root"
+DB_PASSWORD=""
+DB_NAME="tg_manage"
+BACKUP_DIR="../backups"
+DATE=$(date +"%Y%m%d_%H%M%S")
+BACKUP_FILE="tg_manage_backup_${DATE}.sql"
+
+# 创建备份目录
+mkdir -p $BACKUP_DIR
+
+echo "开始备份数据库..."
+echo "数据库: $DB_NAME"
+echo "备份文件: $BACKUP_DIR/$BACKUP_FILE"
+
+# 执行备份
+mysqldump -h$DB_HOST -u$DB_USER -p$DB_PASSWORD \
+    --single-transaction \
+    --routines \
+    --triggers \
+    --complete-insert \
+    --add-drop-table \
+    --extended-insert=FALSE \
+    $DB_NAME > $BACKUP_DIR/$BACKUP_FILE
+
+# 检查备份是否成功
+if [ $? -eq 0 ]; then
+    echo "✅ 数据库备份成功!"
+    echo "备份文件大小: $(du -h $BACKUP_DIR/$BACKUP_FILE | cut -f1)"
+    
+    # 压缩备份文件
+    gzip $BACKUP_DIR/$BACKUP_FILE
+    echo "✅ 备份文件已压缩: $BACKUP_DIR/$BACKUP_FILE.gz"
+    
+    # 清理7天前的备份文件
+    find $BACKUP_DIR -name "tg_manage_backup_*.sql.gz" -mtime +7 -delete
+    echo "✅ 已清理7天前的旧备份文件"
+    
+else
+    echo "❌ 数据库备份失败!"
+    exit 1
+fi
+
+echo "备份完成!"