First real resolver behind the Names & Certificates toggles. When the ENS
switch is on, typing a .eth name in the address bar runs:
1. namehash(name) (EIP-137 keccak256 recursion)
2. eth_call resolver(bytes32) on the ENS registry
3. eth_call contenthash(bytes32) on the returned resolver address
4. decode EIP-1577 (varint protocol + CID) → ipfs|ipns|swarm
5. navigate to <gateway>/ipfs/<cid> (or /ipns/<cid>)
The adapter lives in lib/resolvers/ens.cjs; main.js's navigateTab calls it
through tryExtraResolvers after the BNS check and before the clearnet
fallback. Defaults: publicnode's free Ethereum RPC (Cloudflare's eth-RPC
returns "Internal error" for ENS calls in testing) and ipfs.io as the
gateway (Cloudflare retired their IPFS gateway in 2024). Both are
user-overridable in Settings › Names & Certificates › Advanced.
CIDv0 (Qm… base58) and CIDv1 (bafy… base32) both encode; swarm names
cache a "not yet supported" negative result for one minute until we add a
swarm gateway option. Positive answers cache for 10 min, negatives for 1 min.
