Ports and overriding defaults

The project exposes a few services on host ports. By default the project uses these environment variables (see `.env`):

- `APP_PORT` — the host port mapped to the container HTTP port (default `8080`).
- `VITE_PORT` — Vite dev server port (default `5173`).
- `FORWARD_REDIS_PORT` / `REDIS_PORT` — Redis host port (default `6380`).

To change them, edit `.env` and restart Sail:

```bash
./vendor/bin/sail down
./vendor/bin/sail up -d
```

If another application uses the same host ports, pick unused ports (for example `8081` or `6381`) and update `.env` accordingly.