ADITYA SHANDILYA

Adds websocket routes for the OpenWISP firmware upgrader module when USE_OPENWISP_FIRMWARE environment variable is enabled. This enables real-time upgrade progress tracking for: - Individual upgrade operations - Batch upgrade operations...

## Checklist - [x] I have read the [OpenWISP Contributing Guidelines](http://openwisp.io/docs/developer/contributing.html). - [x] I have manually tested the changes proposed in this pull request. - [ ] I have written...

…rt #227 Changed VPN_* environment variables to OPENVPN_* to distinguish them from upcoming WireGuard VPN configurations. This prepares the codebase for WireGuard support by making OpenVPN-specific variables clearly identifiable. ##...

When user selects 'n' to disable OpenVPN during auto-install, the script was setting VPN_DOMAIN to "example.com" instead of an empty string. This caused the OpenVPN container to still start and...