* feat(dns): resolve libp2p.direct addresses locally without network I/O
p2p-forge hostnames encode IP addresses directly (e.g., 1-2-3-4.peerID.libp2p.direct -> 1.2.3.4),
so DNS queries are wasteful. kubo now parses these IPs in-memory.
- applies to both default libp2p.direct and custom AutoTLS.DomainSuffix
- TXT queries still delegate to network for ACME DNS-01 compatibility
- https://github.com/ipfs/kubo/pull/11140#discussion_r2683477754
use fallback to network DNS instead of returning errors when local
parsing fails, ensuring forward compatibility with future DNS records
- https://github.com/ipfs/kubo/pull/11140#discussion_r2683512408
add peerID validation using peer.Decode(), matching libp2p.direct
server behavior, with fallback on invalid peerID
- https://github.com/ipfs/kubo/pull/11140#discussion_r2683521930
document interaction with DNS.Resolvers in config.md
- https://github.com/ipfs/kubo/pull/11140#discussion_r2683526647
add AutoTLS.SkipDNSLookup config flag to disable local resolution
(useful for debugging or custom DNS override scenarios)
- https://github.com/ipfs/kubo/pull/11140#discussion_r2683533462
add E2E test verifying libp2p.direct resolves locally even when
DNS.Resolvers points to a broken server
additional improvements:
- use madns.BasicResolver interface instead of custom basicResolver
- add compile-time interface checks for p2pForgeResolver and madns.Resolver
- refactor tests: merge IPv4/IPv6, add helpers, use config.DefaultDomainSuffix
- improve changelog to explain public good benefit (reducing DNS load)
Fixes#11136
