improve: add production stage

src/components/KeycloakCallbacks/SilentCallback.js

@@ -0,0 +1,21 @@
+import React, { useEffect, useContext } from "react";
+import { UserManager } from "oidc-client-ts";
+import { ConfigContext } from "../../ConfigProvider";
+
+const SilentCallback = () => {
+    const { config } = useContext(ConfigContext);
+
+    useEffect(() => {
+        const userManager = new UserManager(config.OIDC_CONFIG);
+        userManager.signinSilentCallback()
+            .then(() => {
+            })
+            .catch((err) => {
+                console.error("Silent callback error:", err);
+            });
+    }, [config]);
+
+    return <div>Renew...</div>;
+};
+
+export default SilentCallback;