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/helpers/paid-test-set.ts

@@ -11,8 +11,8 @@ import { matchGlob } from './touchfiles';
 
 /** The exact globs package.json's `test:gate` passes to `bun test`. */
 export const PAID_TEST_GLOBS = [
-  // skill-llm-eval* (not just the base file): skill-llm-eval-spec.test.ts
-  // fell outside the exact glob and could never run in any lane.
+  // skill-llm-eval* (not just the base file): a sibling judge file outside
+  // the exact glob could never run in any lane.
   'test/skill-llm-eval*.test.ts',
   'test/skill-e2e-*.test.ts',
   'test/skill-routing-e2e.test.ts',
@@ -22,7 +22,6 @@ export const PAID_TEST_GLOBS = [
   // entered the paid census. The same bug class as the deleted pre-split
   // monolith (see test/paid-shards.test.ts's regression pin).
   'test/codex-e2e*.test.ts',
-  'test/gemini-e2e.test.ts',
   'test/llm-judge-recommendation.test.ts',
   'test/carve-section-loading*.test.ts',
 ] as const;