Phase 6.3.17: close the production baseline with three repetitions

Ten prompts measured three times against vllm-qwen36, all with the same
23-metric harness. Three earlier result files are kept but excluded from
the consolidation and named for why: one used 14% of the server's
instructions block, two predate the audit-root fix and report zero shapes
by construction.

The consolidated numbers correct the previous report, which was wrong.
Production does not fail to draw. It creates structure and text - up to 40
shapes and 24 texts on the ambiguous-brief prompt - and then fails to
colour any of it. Distinct fill colours run 0 to 1 across all thirty
measurements.

Mean score per repetition: 6.79, 8.25, 0.00. No prompt reaches 60 in any
repetition.

Reporting the veto rate separately from the score turned out to matter more
than expected, so it is now the headline number alongside it. Of thirty
measurements, 21 violate the forbidden-API veto and 15 use nothing but
Penpot's three default colours; only 6 are veto-free. The score alone
collapses those into a zero that cannot distinguish "broke an API rule"
from "made an ugly design", and the two need different fixes.

That also explains why single measurements looked stable: the score is
pinned at zero by the veto, not by model consistency. All the real variance
sits in the prompts that do not veto, where scores swing 20 to 35 points
between identical runs. So the repetitions matter more for the trained
model, which should land in that non-veto regime, than for this baseline.
The eval window at the end has to budget for three repetitions on that side
too, or the comparison is asymmetric.

data/gate5_paginas_prod-baseline.json

@@ -0,0 +1,50 @@
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+}