fix(asterisk): generate resolver unbound config

docs: design resolver unbound config generator

fix: refresh PbxSettings cache on model changes

fix(firmware): suppress successful parted fallback output

fix(firmware): skip part4 setup for separate storage disk

fix(firmware): quiet remaining upgrade console noise

fix(firmware): clean upgrade console output

fix(serial): avoid write probes in message handlers

fix(firmware): avoid serial write probes during upgrade

fix(passkeys): require resident key so YubiKey login works (#1074)

fix: add copytruncate to module log rotation