test(integ): record the vpc-nat-gateway run in the integ ledger

Author: go-to-k

docs/_generated/integ-last-run.tsv

@@ -268,6 +268,6 @@ update-replace	2026-08-08T16:43:56Z	PASS	80	verify.sh	P1 post-#1360 replacement-
 vpc-lambda	2026-07-26T16:53:02Z	PASS	386	standard	0727 P0 sweep (ec2-provider changed #1175/#1177); 16 deleted 0 err; NAT/ENI/EIP clean
 vpc-lambda-cr-race	2026-07-24T11:03:24Z	PASS	432	standard	0724b sweep staleness; 9 del 0 err 0 orphans incl hyperplane ENI
 vpc-lookup	2026-07-24T10:55:09Z	PASS	20	standard	0724b sweep staleness; context-provider loop ok; 1 del 0 err 0 orphans
-vpc-nat-gateway	2026-08-09T13:48:21Z	PASS	265	verify.sh	issues #1411/#1412 CC routing asserted live; rc ok, orph clean
+vpc-nat-gateway	2026-08-09T14:30:04Z	PASS	254	verify.sh	issues #1411/#1412 CC routing asserted live; rc ok, orph clean
 wafv2	2026-08-09T08:37:03Z	PASS	115	standard	#1403 drift reverse map (post-review): deploy + cdkd drift = no drift; 7 del/0 retained/0 err
 wait-condition-handle	2026-07-31T06:19:56Z	PASS	44	verify.sh	TTL-refresh sweep re-run; rc ok, orph clean