What's new
- SMS archive on the router enabled by default for new installs
- SMS archive stored in one file, about 20 times smaller
- Memory bar now shows SIM, modem or router memory
- Background SMS tasks read the SIM once per round
- Faster pages: fewer backend calls for statistics, buttons, bands
- Long SMS no longer merge with unrelated messages
- Web-API modems: separate logins and SMS per modem
- Watchdog no longer marks a freshly connected link as down
- Many small fixes from a full code audit