test(v1-gate): the v1 gate, written RED

One command says how far the repo is from v1, row by row, with an exit
code: rounds with a real domain expert 0/3, traced measurable change 0/3,
feedback types with a way in and an action 3/8 (1, 3, 7), round 3 report
kept - none, MAF points with a green type pointer 0/8 (list not approved),
validated without the approach's own declaration 10/10 in stress round 6,
and `named` 1/20 as a diagnosis that never moves the exit code.

The gate defines the contract (a fixed rounds directory, gitignored by
default), not the generator. Rows 3 and 6 run named tests with
--runxfail; the red probes are xfail(strict=True) so the suite stays green
while the gap is real. No product code changed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

.gitignore

@@ -40,3 +40,6 @@ PLAN.md
 
 # S3.1 embedding-vektorstore: rebyggbar cache, aldri autoritativ — repoet holder null binærartefakter
 *.npy
+
+# v1 gate: default rounds directory. Holds a domain expert's feedback and reports - never public.
+v1-rounds/