feat: add Codex App plugin support with dedicated configuration page and connection settings

web/src/pages/config/index.tsx

@@ -0,0 +1,15 @@
+import { AppConfigPanel } from "@/components/layout/app-config-modal";
+
+export default function ConfigPage() {
+    return (
+        <main className="h-full overflow-y-auto bg-background">
+            <div className="mx-auto max-w-6xl px-6 py-6">
+                <div className="mb-5">
+                    <h1 className="text-xl font-semibold text-stone-950 dark:text-stone-100">配置与用户偏好</h1>
+                    <p className="mt-1 text-sm text-stone-500">渠道聚合、模型选择、同步偏好和 Codex 连接配置</p>
+                </div>
+                <AppConfigPanel />
+            </div>
+        </main>
+    );
+}