Overhaul [1/n]

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

internal/handler/api/costume/costume.go

@@ -0,0 +1,13 @@
+package costume
+
+import "fmt"
+
+func CostumeApi(action string) (res any, err error) {
+	switch action {
+	case "costumeList":
+		res, err = costumeList()
+	default:
+		err = fmt.Errorf("unimplemented action: costume: %s", action)
+	}
+	return res, err
+}

internal/handler/api/costume/list.go

@@ -0,0 +1,19 @@
+package costume
+
+import (
+	"honoka-chan/internal/schema/api/costume"
+	"time"
+)
+
+func costumeList() (res any, err error) {
+	res = costume.ListResp{
+		Result: costume.ListData{
+			CostumeList: []costume.CostumeList{},
+		},
+		Status:     200,
+		CommandNum: false,
+		TimeStamp:  time.Now().Unix(),
+	}
+
+	return res, err
+}