feat(router): 添加路由配置和新页面组件

- 在 src/index.tsx 中添加 Route 组件和引入 Models 页面
- 新增 Models 组件文件 (src/pages/Models.tsx)
- 新增 Settings 组件文件 (src/pages/Settings.tsx)

src/pages/Models.tsx

@@ -0,0 +1,7 @@
+import { Component } from 'solid-js';
+
+const Models: Component = () => {
+  return <div class="workspace flex-row items-stretch gap-0 rounded-xs bg-swatch-neutral-20" />;
+};
+
+export default Models;

src/pages/Settings.tsx

@@ -0,0 +1,7 @@
+import { Component } from 'solid-js';
+
+const Settings: Component = () => {
+  return <div class="workspace" />;
+};
+
+export default Settings;