- Options: VersionCommand, VersionTimeoutSeconds, MinimumVersion, EnforceMinimumVersion
- Version probe service and parser; startup enforcement when EnforceMinimumVersion
- Save flow: block save on probe failure (VersionProbeFailed) or version below minimum (UnsupportedVersion)
- Status API and Dnsmasq page: show version with tooltip, link to CHANGELOG
- Readiness: GET /healthz/ready (version + dnsmasq running when StatusCommand set)
- MapReadyHealthCheck extension; Dockerfile HEALTHCHECK + curl; compose healthcheck and service_healthy
- Docs: README and agents.md updated
- Fix do-0x20-encode: clearing pending when toggling back to original (Disabled/Default)
- Do0x20EncodeDisplay: uncheck uses pending.OldValue when present
- EffectiveConfigFieldDisplay: use pending.OldValue as _valueAtActivation when re-entering with pending
- Effective config: validation errors/warnings in toolbar and save modal, revert from modal
- Custom displays: Do0x20EncodeDisplay (tri-state), KeyOnlyOrValueDisplay
- ExplicitToggleState, config/apply support for do-0x20-encode, option help and tests
- Add --set KEY=VALUE and env vars DNSMASQ_WEBUI_* to configure app at install
- Write env file for systemd (system: /etc/default/dnsmasq-webui; user: install-dir/dnsmasq-webui.env)
- Default ASPNETCORE_URLS=http://0.0.0.0:8080 so service listens on 8080
- Preserve existing env file on update (only overwrite when new config or first install)
- README: configure-at-install section, --set in options table, update preserves env note
- README: use master branch in raw GitHub URL (repo default branch)
- install.sh: trim repo and asset URLs (fix malformed URL when script has CRLF or trailing whitespace)
alex