Sync backend/frontend versions to Docker/VERSION and read version from it

frontend/vite.config.ts

@@ -3,16 +3,19 @@ import react from "@vitejs/plugin-react";
 import { resolve } from "path";
 import { readFileSync } from "node:fs";
 
-const pkg = JSON.parse(
-  readFileSync(resolve(__dirname, "package.json"), "utf-8"),
-) as { version: string };
+const appVersion = readFileSync(
+  resolve(__dirname, "../Docker/VERSION"),
+  "utf-8",
+)
+  .trim()
+  .replace(/^v/, "");
 
 // https://vitejs.dev/config/
 export default defineConfig({
   plugins: [react()],
   define: {
-    /** BanGUI application version injected at build time from package.json. */
-    __APP_VERSION__: JSON.stringify(pkg.version),
+    /** BanGUI application version injected at build time from Docker/VERSION. */
+    __APP_VERSION__: JSON.stringify(appVersion),
   },
   resolve: {
     alias: {