Overhaul [1/n]

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

internal/handler/api/item/list.go

@@ -0,0 +1,13 @@
+package item
+
+import (
+	"encoding/json"
+	honokautils "honoka-chan/pkg/utils"
+)
+
+func itemList() (res any, err error) {
+	itemResp := honokautils.ReadAllText("assets/serverdata/item.json")
+	err = json.Unmarshal([]byte(itemResp), &res)
+
+	return res, err
+}