Implement achievement list

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

internal/handler/api/achievement/unaccomplishlist.go

@@ -0,0 +1,27 @@
+package achievement
+
+import (
+	achievementapischema "honoka-chan/internal/schema/api/achievement"
+	"time"
+)
+
+func unaccomplishList() (res any, err error) {
+	listData := make([]achievementapischema.UnaccomplishListData, 0, len(achievementFilterCategoryList))
+	for i := range achievementFilterCategoryList {
+		listData = append(listData, achievementapischema.UnaccomplishListData{
+			FilterCategoryID: achievementFilterCategoryList[i],
+			AchievementList:  []achievementapischema.AchievementListItem{},
+			Count:            0,
+			IsLast:           true,
+		})
+	}
+
+	res = achievementapischema.UnaccomplishListResp{
+		Result:     listData,
+		Status:     200,
+		CommandNum: false,
+		TimeStamp:  time.Now().Unix(),
+	}
+
+	return res, nil
+}