feat(cron): 实现定时任务管理功能

- 新增 cron模块，支持定时任务管理- 实现了任务列表获取、任务添加、任务移除和任务状态获取等接口
- 添加了默认任务，包括数据同步、数据清理、健康检查和缓存刷新等
- 实现了优雅关闭功能，确保在服务停止时正确停止所有任务
- 添加了定时任务相关文档和使用指南

scripts/start.bat

@@ -0,0 +1,49 @@
+@echo off
+chcp 65001 >nul
+
+echo ==========================================
+echo Epic Game Web Service
+echo Starting with cron jobs enabled...
+echo ==========================================
+
+REM 检查Go环境
+go version >nul 2>&1
+if errorlevel 1 (
+    echo Error: Go is not installed or not in PATH
+    pause
+    exit /b 1
+)
+
+REM 检查Go版本
+for /f "tokens=3" %%i in ('go version') do set GO_VERSION=%%i
+echo Go version: %GO_VERSION%
+
+REM 设置环境变量
+set GO_ENV=production
+set GF_GCFG_FILE=manifest/config/config.yaml
+
+REM 清理旧的构建文件
+echo Cleaning old build files...
+if exist main.exe del main.exe
+if exist main del main
+
+REM 构建项目
+echo Building project...
+go build -o main.exe .
+
+if errorlevel 1 (
+    echo Error: Build failed
+    pause
+    exit /b 1
+)
+
+echo Build successful!
+
+REM 启动服务
+echo Starting server on port 8283...
+echo Cron jobs will be started automatically...
+echo Press Ctrl+C to stop the server
+echo ==========================================
+
+REM 运行服务
+main.exe 

scripts/start.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+# Epic Game Web Service 启动脚本
+
+echo "=========================================="
+echo "Epic Game Web Service"
+echo "Starting with cron jobs enabled..."
+echo "=========================================="
+
+# 检查Go环境
+if ! command -v go &> /dev/null; then
+    echo "Error: Go is not installed or not in PATH"
+    exit 1
+fi
+
+# 检查Go版本
+GO_VERSION=$(go version | awk '{print $3}' | sed 's/go//')
+echo "Go version: $GO_VERSION"
+
+# 设置环境变量
+export GO_ENV=production
+export GF_GCFG_FILE=manifest/config/config.yaml
+
+# 清理旧的构建文件
+echo "Cleaning old build files..."
+rm -f main.exe
+rm -f main
+
+# 构建项目
+echo "Building project..."
+go build -o main.exe .
+
+if [ $? -ne 0 ]; then
+    echo "Error: Build failed"
+    exit 1
+fi
+
+echo "Build successful!"
+
+# 启动服务
+echo "Starting server on port 8283..."
+echo "Cron jobs will be started automatically..."
+echo "Press Ctrl+C to stop the server"
+echo "=========================================="
+
+# 运行服务
+./main.exe