fix: serve Dustbound privacy with HTTP 200

GitHub Pages 404.html still returns 404 status; emit a real
path so Play Console crawlers can fetch the policy.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: Antaris

package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "scripts": {
     "dev": "vite",
-    "build": "tsc -b && vite build && node -e \"require('fs').copyFileSync('dist/index.html','dist/404.html')\"",
+    "build": "tsc -b && vite build && node scripts/spa-fallback.mjs",
     "lint": "eslint .",
     "preview": "vite preview"
   },

scripts/spa-fallback.mjs

@@ -0,0 +1,14 @@
+import { copyFileSync, mkdirSync } from 'node:fs'
+import { dirname } from 'node:path'
+
+// GitHub Pages returns HTTP 404 for missing paths even when 404.html is the SPA shell.
+// Emit a real file for the privacy route so crawlers and Play Console get HTTP 200.
+const routes = ['products/dustbound/privacy']
+
+copyFileSync('dist/index.html', 'dist/404.html')
+
+for (const route of routes) {
+  const dest = `dist/${route}/index.html`
+  mkdirSync(dirname(dest), { recursive: true })
+  copyFileSync('dist/index.html', dest)
+}