Overhaul [1/n]

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

internal/handler/api/museum/museum.go

@@ -0,0 +1,17 @@
+package museum
+
+import (
+	"fmt"
+
+	"github.com/gin-gonic/gin"
+)
+
+func MuseumApi(ctx *gin.Context, action string) (res any, err error) {
+	switch action {
+	case "info":
+		res, err = museumInfo(ctx)
+	default:
+		err = fmt.Errorf("unimplemented action: museum: %s", action)
+	}
+	return res, err
+}