add Android build; remove bulk video compression as it's impractical

package.json

@@ -20,12 +20,14 @@
   },
   "scripts": {
     "dev": "tauri dev",
+    "android": "tauri android run",
     "build": "tauri build",
     "browser": "concurrently 'pnpm:browser:*'",
     "browser:server": "node server.js",
     "browser:vite": "vitepress dev docs --open",
     "vite-dev": "vitepress dev docs",
     "vite-build": "vitepress build docs",
+    "postvite-build": "node postvite-build.js",
     "preview": "vitepress preview docs"
   }
 }