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-office-hours-brain-writeback.test.ts

@@ -35,6 +35,7 @@
  */
 
 import { expect, beforeAll, afterAll } from 'bun:test';
+import { resolveEvalModel } from '../lib/eval-model';
 import { CAPTURE_LONG_MS } from './helpers/eval-budgets';
 import { execFileSync, spawnSync } from 'child_process';
 import {
@@ -228,7 +229,7 @@ exit 0
           collector: evalCollector,
           name: '/office-hours-brain-writeback',
           suite: 'Office Hours Brain Writeback E2E',
-          model: 'claude-sonnet-4-6',
+          model: resolveEvalModel('capture'),
           run: (signal) => runSkillTest({
             signal,
             prompt: `Read office-hours/SKILL.md for the workflow.
@@ -245,7 +246,7 @@ This is a test of the brain-writeback path. Do NOT skip the gbrain save step und
             timeout: CAPTURE_LONG_MS,
             testName: 'office-hours-brain-writeback',
             runId,
-            model: 'claude-sonnet-4-6',
+            model: resolveEvalModel('capture'),
             env: childEnv,
           }),
           validate: (result) => {