feat: initial lifelog project

- 待办事项（支持优先级、截止日期）
- 每日记录（上午/下午/晚上分条目）
- Go后端 + Gin + GORM + MySQL
- React前端 + TailwindCSS

cmd/server/main.go

@@ -0,0 +1,104 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"lifelog/internal/handler"
+	"lifelog/internal/model"
+	"lifelog/internal/repository"
+	"lifelog/internal/service"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+)
+
+func main() {
+	gin.SetMode(gin.ReleaseMode)
+
+	// 数据库连接
+	dsn := fmt.Sprintf("%s:%s@tcp(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local",
+		getEnv("DB_USER", "rhett_claw"),
+		getEnv("DB_PASS", "Zhugezhongli001"),
+		getEnv("DB_HOST", "localhost"),
+		getEnv("DB_NAME", "rhett_claw"),
+	)
+
+	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{})
+	if err != nil {
+		log.Fatalf("连接数据库失败: %v", err)
+	}
+
+	// 自动建表
+	db.AutoMigrate(&model.Todo{}, &model.DailyLog{})
+
+	// 初始化各层
+	todoRepo := repository.NewTodoRepository(db)
+	dailyLogRepo := repository.NewDailyLogRepository(db)
+	todoSvc := service.NewTodoService(todoRepo)
+	dailyLogSvc := service.NewDailyLogService(dailyLogRepo)
+	h := handler.NewHandler(todoSvc, dailyLogSvc)
+
+	// Gin 路由
+	r := gin.New()
+	r.Use(gin.Recovery())
+
+	// 静态文件（前端构建产物）
+	distPath := "/var/www/lifelog/web/dist"
+	r.Static("/assets", distPath+"/assets")
+	r.StaticFile("/favicon.svg", distPath+"/favicon.svg")
+
+	// 前端路由兜底
+	r.NoRoute(func(c *gin.Context) {
+		c.File(distPath + "/index.html")
+	})
+
+	// API 路由
+	api := r.Group("/api")
+	{
+		api.GET("/todos", h.GetTodos)
+		api.POST("/todos", h.CreateTodo)
+		api.PUT("/todos/:id", h.UpdateTodo)
+		api.PATCH("/todos/:id/done", h.ToggleTodo)
+		api.DELETE("/todos/:id", h.DeleteTodo)
+		api.GET("/logs/:date", h.GetDailyLog)
+		api.GET("/logs", h.GetRecentLogs)
+		api.PUT("/logs/:date", h.SaveDailyLog)
+	}
+
+	port := getEnv("PORT", "17010")
+	srv := &http.Server{Addr: ":" + port, Handler: r}
+
+	go func() {
+		log.Printf("LifeLog 服务启动: http://localhost:%s", port)
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			log.Fatalf("服务启动失败: %v", err)
+		}
+	}()
+
+	// 优雅关机
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+	<-quit
+	log.Println("正在关闭服务...")
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	if err := srv.Shutdown(ctx); err != nil {
+		log.Fatalf("服务强制退出: %v", err)
+	}
+	log.Println("服务已关闭")
+}
+
+func getEnv(key, defaultVal string) string {
+	if val := os.Getenv(key); val != "" {
+		return val
+	}
+	return defaultVal
+}