Update docs, configs, and scripts

Co-Authored-By: Oz <oz-agent@warp.dev>

docs/TROUBLESHOOTING.md

@@ -83,7 +83,8 @@ Ensure `HF_TOKEN` is set to a valid token with access to Gemma 3.
 ```bash
 grep '^GEMMA_MODEL_ID=' .env
 ```
-Use a valid model, e.g. `google/gemma-3-1b-it`.
+Set `GEMMA_MODEL_ID` in `.env` to the model you intend to run and ensure your `HF_TOKEN` has access to it.
+After editing `.env`, run `./scripts/restart.sh` so synced service env files and containers pick up the change.
 
 3. ROCm runtime/device issues:
 ```bash