Nova Server v1.1.2

An important reliability release. Update in one click from the panel (Settings, General, self-update), or reinstall with the one-line installer.

Fixes

Fresh installs now come up reliably. On a brand-new server the xray access-log directory did not exist yet when the config was validated, so xray rejected a perfectly valid config and the panel never became reachable on port 443. Nova now creates that directory (owned by the xray user) before validating, so a fresh node serves the panel right away. This also fixes the "site not loading" after a clean install.
Re-running the installer reliably applies updates (it now restarts the agent), and install output is clean (no stray tar warnings).

One-command uninstall. Remove Nova, xray, sing-box and all data with nova-uninstall (add --yes to skip the prompt), or run it directly:
```
bash <(curl -fsSL https://raw.githubusercontent.com/IRNova/Nova-Server/main/nova-uninstall.sh)
```

Nova is now VPS-only. The Docker and PaaS (runflare) path has been removed to keep one clear, fully featured install.

bash <(curl -fsSL https://raw.githubusercontent.com/IRNova/Nova-Server/main/nova-node.sh)