feat: custom http error in json format

internal/web/error.go

@@ -0,0 +1,17 @@
+package web
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+func Error(w http.ResponseWriter, err string, code int) {
+    w.Header().Set("Content-Type", "application/json; charset=utf-8")
+    w.Header().Set("X-Content-Type-Options", "nosniff")
+    w.WriteHeader(code)
+	_ = json.NewEncoder(w).Encode(map[string]any{
+		"error": err,
+		"status": code,
+	})
+}
+