report: keep four-part versions after v or ==

The IPv4 rule replaced not1mm's new version in "v26.11.10.1" and
"not1mm==26.11.10.1" with <ip> (report CD-GB29BZ), because only a digit
or dot before an address kept it. Also keep ones after v, V or ==; an
address after a single =, as in addr=192.168.1.20, is still replaced.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/report.bats

@@ -54,6 +54,8 @@ field() {
     "ardop 1.0.4.1.3 is up to date. gridtracker2 2.261108.4-1, python 3.14" \
     "ssh alice@lab from 192.168.1.20; mail david@federated.computer" \
     "lab.tail1234.ts.net 100.101.102.103 127.0.0.1" \
+    "Updated not1mm v26.11.6 -> v26.11.10.1; + not1mm==26.11.10.1; V1.2.3.4" \
+    "addr=192.168.1.20 =10.0.0.1 [10.0.0.2] (10.0.0.3)" \
     "alicesmith and labrador stay" > "$LOG"
 
   run bash "$REPO/report" --view "$LOG"
@@ -64,6 +66,8 @@ field() {
     "ardop 1.0.4.1.3 is up to date. gridtracker2 2.261108.4-1, python 3.14" \
     "ssh <user>@<host> from <ip>; mail <email>" \
     "<tailscale-name> <ip> <ip>" \
+    "Updated not1mm v26.11.6 -> v26.11.10.1; + not1mm==26.11.10.1; V1.2.3.4" \
+    "addr=<ip> =<ip> [<ip>] (<ip>)" \
     "alicesmith and labrador stay")" ]
   ! grep -q curl "$STUB_LOG"
 }