more review fixes

scripts/resolver/README.md

@@ -200,10 +200,13 @@ then be quoted at list price while the registrar charges the premium. Configure
 `SNRC_CONTROLLER_<TLD>` wherever `SNRC_REGISTRAR_<TLD>` is set, and upgrade this
 service before the routers that query it.
 
-Upgrade the resolver before the router that queries it. A resolver without this
-status reports a name in its auction as plain `expired`, which reads as "free at
-the ordinary price" — the price the registrar actually charges is still the
-premium one, so the quote is wrong until the resolver is current.
+**Upgrade this service before the routers that query it.** Routers from v22 hash
+the 2LD of every query, and two things only this version does are needed to
+answer them: decoding a bracket label that sits under a subname
+(`sub.[<hash>].tld`, which an older resolver hashes as literal text and so
+answers about a node nobody asked about), and reporting `auction` at all — an
+older resolver calls a name in its auction plain `expired`, which reads as "free
+at the ordinary price" while the registrar charges the premium.
 
 ### Why a name is reserved
 

scripts/resolver/service/snrc-resolve.py

@@ -66,8 +66,8 @@ Unrecognised payloads fall back to `0x`-prefixed raw hex.
 import hashlib
 import json
 import os
-import time
 import sys
+import time
 from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 from urllib.parse import unquote, urlparse
 from urllib.request import Request, urlopen
@@ -289,7 +289,8 @@ def name_status(name: str):
         }
 
     # nameExpires and reservedNames are keyed on uint256(keccak(label)).
-    # Decoded for a 2LD only, the same rule node_of applies to the node.
+    # Only the 2LD's label is a registry key, wherever in the name it sits, so it
+    # is the only one decoded - the same rule node_of applies to the node.
     label = labels[-2]
     if is_encoded_labelhash(label):
         token = int(label[1:-1], 16)