fix(frontend): bundle app version via package.json import instead of Vite define

frontend/vite.config.ts

@@ -1,15 +1,6 @@
-import { readFileSync } from "node:fs";
-import path from "node:path";
-import { fileURLToPath } from "node:url";
 import { defineConfig } from "vite";
 import react from "@vitejs/plugin-react";
 
-const __dirname = path.dirname(fileURLToPath(import.meta.url));
-const pkg = JSON.parse(readFileSync(path.join(__dirname, "package.json"), "utf-8")) as { version: string };
-
 export default defineConfig({
   plugins: [react()],
-  define: {
-    __FRONTEND_VERSION__: JSON.stringify(pkg.version),
-  },
 });