feat: 初始化后端服务骨架，包含配置加载、数据库连接、Redis集成及消息队列任务处理。

cmd/server/main.go

@@ -5,7 +5,6 @@ import (
 	"log"
 	"os"
 	"path/filepath"
-	"time"
 
 	"accounting-app/internal/cache"
 	"accounting-app/internal/config"
@@ -125,8 +124,8 @@ func main() {
 			ctx,
 			redisClient.Client(),
 			db,
-			5*time.Second, // Poll interval: 检查延迟任务的间隔
-			2,             // Worker count: 并发处理任务的数量
+			cfg.MQPollInterval, // Poll interval from config
+			cfg.MQWorkerCount,  // Worker count from config
 		)
 		if err != nil {
 			log.Printf("Warning: Failed to initialize recurring task system: %v", err)