frontend: drop fs routes

Author: renbaoshuo

apps/frontend/app/routes.ts

@@ -1,4 +1,7 @@
-import { type RouteConfig } from '@react-router/dev/routes';
-import { flatRoutes } from '@react-router/fs-routes';
+import { type RouteConfig, index } from '@react-router/dev/routes';
 
-export default flatRoutes() satisfies RouteConfig;
+export default [
+  index('./routes/main.tsx'),
+
+  // other routes can be added here...
+] satisfies RouteConfig;

apps/frontend/app/routes/_index.tsx

@@ -0,0 +1,12 @@
+import type { Route } from './+types/main';
+
+export function meta({}: Route.MetaArgs) {
+  return [
+    { title: 'OIerDb' },
+    { name: 'description', content: 'A database for Chinese OI participants.' },
+  ];
+}
+
+export default function Home() {
+  return <div>Home</div>;
+}

apps/frontend/app/routes/main.tsx

@@ -23,7 +23,6 @@
   },
   "devDependencies": {
     "@react-router/dev": "^7.9.4",
-    "@react-router/fs-routes": "^7.9.4",
     "@types/node": "^22",
     "@types/react": "^19.2.2",
     "@types/react-dom": "^19.2.2",

apps/frontend/package.json

@@ -3471,7 +3471,6 @@ __metadata:
     "@mantine/hooks": "npm:^8.3.5"
     "@mantine/vanilla-extract": "npm:^8.3.5"
     "@react-router/dev": "npm:^7.9.4"
-    "@react-router/fs-routes": "npm:^7.9.4"
     "@react-router/node": "npm:^7.9.4"
     "@react-router/serve": "npm:^7.9.4"
     "@types/node": "npm:^22"
@@ -3598,21 +3597,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@react-router/fs-routes@npm:^7.9.4":
-  version: 7.9.4
-  resolution: "@react-router/fs-routes@npm:7.9.4"
-  dependencies:
-    minimatch: "npm:^9.0.0"
-  peerDependencies:
-    "@react-router/dev": ^7.9.4
-    typescript: ^5.1.0
-  peerDependenciesMeta:
-    typescript:
-      optional: true
-  checksum: 10c0/fe950fde77d87458bac734090ba8b41c7af446f6df2c6857500f1937a73320a77a17d6e89770fe167476e244b76739b011d99e0791330fd68064b8060d9a8add
-  languageName: node
-  linkType: hard
-
 "@react-router/node@npm:7.9.4, @react-router/node@npm:^7.9.4":
   version: 7.9.4
   resolution: "@react-router/node@npm:7.9.4"
@@ -10534,7 +10518,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"minimatch@npm:^9.0.0, minimatch@npm:^9.0.4":
+"minimatch@npm:^9.0.4":
   version: 9.0.5
   resolution: "minimatch@npm:9.0.5"
   dependencies: