* chore(dns): remove Mullvad DNS providers
Mullvad is shutting down its public encrypted DNS servers and sponsoring
Quad9 instead, so the six Mullvad profiles would resolve nothing once the
servers go dark.
Drops the Mullvad entries from config/dns.json, trims them out of the
WPFchangedns ComboItems, and removes the matching bullets and the
DoH-fallback note from the tweaks guide. Quad9 already ships as a provider,
so users have a documented destination.
The generated code-reference page for this tweak is left alone; the
pre-release workflow regenerates it from config/tweaks.json.
* test(dns): use generic fixtures for DoH-only providers
The DoH-only and SecondaryDohTemplate paths in Set-WinUtilDNS were covered
by fixtures named after Mullvad and carrying its real resolver addresses.
Those code paths still exist, so the coverage stays; only the naming was
tied to a provider WinUtil no longer ships.
Renames the fixtures to DohOnlyProvider and DohOnlyNoSecondary and swaps in
RFC 5737 / RFC 3849 documentation addresses and example.com templates, so
the tests no longer read as if they exercise a shipped provider.
* Update dns.json
* Fix Mullvad DNS review issues
* Add Mullvad secondary resolvers
* Register DoH before changing adapter DNS
* Report DNS failures to tweak workflow
* Handle non-terminating DNS assignment failures
* Preserve DNS fallback and document Mullvad options
---------
Co-authored-by: Chris Titus <contact@christitus.com>
* feat: Add DoH templates for DNS providers in configuration
* feat: Implement DoH support for DNS configuration and management
* feat(pester): enhance DNS tests to include DoH server address handling and template application
* fix: address codex feedback
* fix: update existing DoH server entries
* fix: enable DoH auto-upgrade
* fix: handle DNS setup failures
* fix: remove DoH state on DHCP reset
