test: derive paid touchfiles from each eval's static closure (E)

touchfiles.test.ts now checks, per key, that the paid file's static
test/helpers and test/fixtures closure (plus fixture paths it names in string
literals) is covered, and names the file, path, chain and key to fix when it is
not. Free *.test.ts files are no longer touchfiles, so editing a free replay
test stops selecting paid evals: 950 entries removed, 653 real closure paths
added. The hand-copied inventories go: periodic-fixture-selection,
fake-impeccable-touchfiles and 45 per-file selection examples. Selection for
the sample edits (plan-eng-review template, claude-pty-runner,
plan-count-fixture, gstack-config) loses no case under either profile.
CONTRIBUTING documents the rule and its lower bound.

test/office-posture-recording.test.ts

@@ -2,7 +2,6 @@ import { expect, test } from 'bun:test';
 import * as fs from 'node:fs';
 import * as path from 'node:path';
 import { CAPTURE_MS, CAPTURE_LONG_MS } from './helpers/eval-budgets';
-import { E2E_TOUCHFILES } from './helpers/touchfiles';
 import { OFFICE_HOURS_BUN_GRACE_MS, runRecordedOfficeHoursAttempt } from './helpers/office-hours-attempt';
 
 const source = fs.readFileSync(path.join(import.meta.dir, 'skill-e2e-office-hours.test.ts'), 'utf8');
@@ -114,7 +113,3 @@ test('posture consecutive failed and passing callbacks retain separate final ver
     expect(x.records[0].judge_scores).toEqual({ axis_a: 4, axis_b: 3 }); expect(x.records[1].judge_scores).toEqual({ axis_a: 4, axis_b: 4 });
   }
 });
-
-test('posture recorder controls select exactly the two existing paid owners', () => {
-  expect(Object.entries(E2E_TOUCHFILES).filter(([, paths]) => paths.includes('test/office-posture-recording.test.ts')).map(([name]) => name)).toEqual([...owners]);
-});