Reorganize directory structures

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/handler/event.go

@@ -0,0 +1,34 @@
+package handler
+
+import (
+	"encoding/json"
+	"honoka-chan/internal/model"
+	"honoka-chan/internal/utils"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+func EventList(ctx *gin.Context) {
+	targets := []model.TargetList{}
+	for i := 0; i < 6; i++ {
+		targets = append(targets, model.TargetList{
+			Position:      i + 1,
+			IsDisplayable: false,
+		})
+	}
+	eventsResp := model.EventsResp{
+		ResponseData: model.EventsRes{
+			TargetList:      targets,
+			ServerTimestamp: time.Now().Unix(),
+		},
+		ReleaseInfo: []any{},
+		StatusCode:  200,
+	}
+	resp, err := json.Marshal(eventsResp)
+	utils.CheckErr(err)
+
+	ctx.Header("X-Message-Sign", utils.GenXMS(resp))
+	ctx.String(http.StatusOK, string(resp))
+}