feat: 初始化考培练系统项目

- 从服务器拉取完整代码
- 按框架规范整理项目结构
- 配置 Drone CI 测试环境部署
- 包含后端(FastAPI)、前端(Vue3)、管理端

技术栈: Vue3 + TypeScript + FastAPI + MySQL

backend/scripts/check_backup_status.sh

@@ -0,0 +1,123 @@
+#!/bin/bash
+
+# 考陪练系统数据库备份状态检查脚本
+# 作者: AI Assistant
+# 日期: 2025-09-23
+
+BACKUP_DIR="/root/aiedu/kaopeilian-backend/backups"
+LOG_FILE="${BACKUP_DIR}/check_status.log"
+
+# 日志函数
+log() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" | tee -a "${LOG_FILE}"
+}
+
+# 检查最近的备份文件
+check_recent_backup() {
+    local recent_backup=$(find "${BACKUP_DIR}" -name "kaopeilian_backup_*.sql.gz" -type f -mtime -1 | sort | tail -1)
+    
+    if [ -n "${recent_backup}" ]; then
+        local backup_time=$(stat -c %Y "${recent_backup}")
+        local current_time=$(date +%s)
+        local time_diff=$((current_time - backup_time))
+        local hours_diff=$((time_diff / 3600))
+        
+        log "最近备份: $(basename ${recent_backup})"
+        log "备份时间: $(stat -c %y "${recent_backup}")"
+        log "距离现在: ${hours_diff} 小时前"
+        
+        if [ ${hours_diff} -gt 2 ]; then
+            log "WARNING: 备份文件超过2小时未更新"
+            return 1
+        else
+            log "备份状态: 正常"
+            return 0
+        fi
+    else
+        log "ERROR: 未找到最近的备份文件"
+        return 1
+    fi
+}
+
+# 检查备份文件大小
+check_backup_size() {
+    local recent_backup=$(find "${BACKUP_DIR}" -name "kaopeilian_backup_*.sql.gz" -type f -mtime -1 | sort | tail -1)
+    
+    if [ -n "${recent_backup}" ]; then
+        local backup_size=$(stat -c %s "${recent_backup}")
+        local backup_size_mb=$((backup_size / 1024 / 1024))
+        
+        log "备份文件大小: ${backup_size_mb}MB"
+        
+        if [ ${backup_size_mb} -lt 1 ]; then
+            log "WARNING: 备份文件过小，可能不完整"
+            return 1
+        else
+            log "备份文件大小: 正常"
+            return 0
+        fi
+    fi
+}
+
+# 检查定时任务状态
+check_cron_status() {
+    if crontab -l | grep -q "backup_database.sh"; then
+        log "定时任务: 已配置"
+        return 0
+    else
+        log "ERROR: 定时任务未配置"
+        return 1
+    fi
+}
+
+# 检查systemd定时器状态
+check_systemd_timer() {
+    if systemctl is-active kaopeilian-backup.timer >/dev/null 2>&1; then
+        log "Systemd定时器: 运行中"
+        
+        # 获取下次执行时间
+        local next_run=$(systemctl list-timers kaopeilian-backup.timer --no-pager | grep kaopeilian-backup.timer | awk '{print $1, $2}')
+        log "下次执行时间: ${next_run}"
+        
+        return 0
+    else
+        log "ERROR: Systemd定时器未运行"
+        return 1
+    fi
+}
+
+# 检查Docker容器状态
+check_docker_container() {
+    if docker ps | grep -q "kaopeilian_mysql"; then
+        log "MySQL容器: 运行中"
+        return 0
+    else
+        log "ERROR: MySQL容器未运行"
+        return 1
+    fi
+}
+
+# 主检查函数
+main() {
+    log "========== 备份状态检查开始 =========="
+    
+    local exit_code=0
+    
+    # 执行各项检查
+    check_recent_backup || exit_code=1
+    check_backup_size || exit_code=1
+    check_cron_status || exit_code=1
+    check_systemd_timer || exit_code=1
+    check_docker_container || exit_code=1
+    
+    if [ ${exit_code} -eq 0 ]; then
+        log "========== 备份状态检查完成: 全部正常 =========="
+    else
+        log "========== 备份状态检查完成: 发现问题 =========="
+    fi
+    
+    return ${exit_code}
+}
+
+# 执行主函数
+main "$@"