test: clean up the paid eval lane (B1-B4, B6, B7)

- B1: delete paid files that assert nothing or cannot pass meaningfully:
  skill-llm-eval-spec and skill-e2e-spec-execute (test.todo), gemini-e2e
  (+ gemini-session-runner; no gemini CLI in CI), ship-idempotency (red
  since v1.63), the two opus-4-7 *-sonnet overlay wrappers, conductor-prose
  (+ its source-evaluation replay), codex-e2e-plan-format; drop their keys,
  scripts and census rows.
- B2: skill-llm-eval grades browse/sections/command-list.md with one union
  judge that also carries the baseline score pin; regression-vs-baseline
  deleted (paid run: pass, c4/c4/a4).
- B3: memory-pipeline, ios-qa, ios-qa-swift-build and plan-tune-cathedral
  make no model calls; renamed out of the paid glob so they run on every
  PR. Swift builds need GSTACK_TEST_SWIFT=1; device stub deleted.
- B4: codex-e2e*, outside-voice, aside and ios-device cannot run in the CI
  image; excluded from the weekly lane with a tracked re-entry condition.
- B6: fold opus-47's negative routing controls into skill-routing-e2e
  journey-negatives (paid run: 3/3 unrouted) and delete the file.
- B7: delete the never-green brain-privacy-gate eval; a free
  gstack-skill-start test now proves consent precedes artifacts egress.

test/native-auto-decide.test.ts

@@ -98,7 +98,7 @@ test('the native reader cannot promote foreign cwd, child, user or tool-result t
 });
 
 test('new native annotation dependencies retain all existing observation caller owners',()=>{
-  const expected=['plan-ceo-review-plan-mode','plan-eng-review-plan-mode','plan-design-review-plan-mode','plan-devex-review-plan-mode','plan-mode-no-op','office-hours-auto-mode','auto-decide-preserved','conductor-prose'];
+  const expected=['plan-ceo-review-plan-mode','plan-eng-review-plan-mode','plan-design-review-plan-mode','plan-devex-review-plan-mode','plan-mode-no-op','office-hours-auto-mode','auto-decide-preserved'];
   for(const file of ['test/helpers/native-auto-decide.ts','test/native-auto-decide.test.ts','test/native-auto-decide-pty.test.ts','test/fixtures/native-auto-decide-ag.json']){
     const owners=Object.entries(E2E_TOUCHFILES).filter(([,paths])=>paths.includes(file)).map(([name])=>name);expect(owners).toEqual(expected);
     expect(selectTests([file],E2E_TOUCHFILES).selected).toContain('auto-decide-preserved');