Track deploy_remote.py and point docs at the committed entrypoint.

Keep ephemeral scripts/_*.py ignored while making one-shot production deploy reproducible from git.

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

package.json

@@ -9,7 +9,7 @@
     "start": "next start",
     "lint": "eslint",
     "sync:firmware": "powershell -ExecutionPolicy Bypass -File ./scripts/sync-firmware.ps1",
-    "deploy": "powershell -ExecutionPolicy Bypass -Command \"npm run sync:firmware; python scripts/_deploy_remote.py\""
+    "deploy": "powershell -ExecutionPolicy Bypass -Command \"npm run sync:firmware; python scripts/deploy_remote.py\""
   },
   "dependencies": {
     "@radix-ui/react-radio-group": "^1.5.1",