Per RFC 4592 section 2.2.1, wildcards should only match when the queried
name does not exist in the zone. Previously, if host.example.com had an
A record and *.example.com had an AAAA record, querying AAAA for
host.example.com would incorrectly return the wildcard AAAA instead of
NODATA.
Now the resolver checks if the domain exists (with any record type)
before falling back to wildcard matching, returning proper NODATA
responses for existing names without the requested record type.
* **New Features**
* Wildcard DNS fallback for eligible query types (excluding NS/SOA): attempts wildcard records when no exact match, rewrites wildcard names back to the original query, and rotates responses; preserves CNAME resolution.
* **Tests**
* Vastly expanded coverage for wildcard behaviors, precedence, multi-record round‑robin, multi-type chains, multi-hop and cross-zone scenarios, and edge cases (NXDOMAIN/NODATA, fallthrough).
* **Chores**
* CI lint config updated to ignore an additional codespell entry.
