test: run seven paid evals on the current default capture model (B8)

skill-e2e-{auq-matrix,plan-format,qa-bugs,retro,workflow} pinned
claude-opus-4-7 and skill-e2e-office-hours plus -brain-writeback pinned
claude-sonnet-4-6; none tests a historical model, so they now capture with
resolveEvalModel('capture'), and the free harness tests that execute these
registrations receive the same resolver. The paid re-pin run passed all of
them. skill-e2e-{design,office-hours-phase4,plan-prosons,plan} keep
claude-opus-4-7: six of their cases failed on the default model (three
timeouts, a missing report file, a format miss and a posture score of 3), so
per the plan's fallback they keep their pins with a TODOS entry. The pre-spend
estimate and drop threshold are in docs/test-audit-2026-09.md.

test/skill-e2e-qa-bugs.test.ts

@@ -1,4 +1,5 @@
 import { describe, test, expect, beforeAll, afterAll } from 'bun:test';
+import { resolveEvalModel } from '../lib/eval-model';
 import { CAPTURE_MS, CAPTURE_LONG_MS } from './helpers/eval-budgets';
 import { runSkillTest } from './helpers/session-runner';
 import { outcomeJudge } from './helpers/llm-judge';
@@ -120,7 +121,7 @@ CRITICAL RULES:
       timeout: CAPTURE_MS,
       testName: `qa-${label}`,
       runId,
-      model: 'claude-opus-4-7',
+      model: resolveEvalModel('capture'),
     });
 
     logCost(`/qa ${label}`, result);