Reorganize directory structures

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

internal/handler/gdpr.go

@@ -0,0 +1,28 @@
+package handler
+
+import (
+	"encoding/json"
+	"honoka-chan/internal/model"
+	"honoka-chan/internal/utils"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+func Gdpr(ctx *gin.Context) {
+	gdprResp := model.GdprResp{
+		ResponseData: model.GdprRes{
+			EnableGdpr:      true,
+			IsEea:           false,
+			ServerTimestamp: time.Now().Unix(),
+		},
+		ReleaseInfo: []any{},
+		StatusCode:  200,
+	}
+	resp, err := json.Marshal(gdprResp)
+	utils.CheckErr(err)
+
+	ctx.Header("X-Message-Sign", utils.GenXMS(resp))
+	ctx.String(http.StatusOK, string(resp))
+}