test: delete tests of dead eval code (A)

- A1: the retired Eng lexical oracle (evaluateEngSeedCoverage,
  isEngSeedDecisionAUQ), the completion-handoff detector and the retained
  corpus had no paid caller since v1.87.6; delete their 26 replay files,
  ~2.6k helper LOC and fixtures, and the dead blocks in 8 mixed files
  (live hasNativePlanTerminal / batching assertions stay).
- A2: dead viewport approvers in autoplan-artifact-permission and their 11
  replay files + fixtures; recorder/launcher cases stay.
- A3: never-wired oracles and seeders (autoplan-phase-order,
  eng-finding-fixture, ceo-paired-fixture, design-ui-scope,
  plan-skill-completion, pty-current-screen, required-reads,
  transcript-section-logger); plan-seed-submission now decodes through the
  production createPtyScreen; section manifests name their actual guard.
- A4: zero-reference helper exports, plus execGit and invokeAndObserve
  found by the reachability pass.
- 52 fixtures orphaned by the deletions; touchfile and selection-table
  entries for every deleted path.

test/eng-seeded-completion-ai.test.ts

@@ -189,64 +189,3 @@ test('completion evidence dependencies select exactly the seeded observation own
     expect(selectTests([file], E2E_TOUCHFILES).selected.sort()).toEqual(owners);
   }
 });
-
-import c6fcCurrent from './fixtures/eng-count-c6fc-public.json';
-import { isEngCompletionHandoff } from './helpers/eng-completion-handoff';
-import type { NativePlanQuestionCall } from './helpers/plan-count-transcript';
-
-test('complete native navigation preserves conflicting current states and accepts explicitly scoped history only', () => {
-  const calls = c6fcCurrent.transcript.calls as NativePlanQuestionCall[];
-  const call = calls.at(-1)!;
-  const check = (plan: string, selected = call, prior = calls.slice(0, -1)) => isEngCompletionHandoff(predicates.nativePlanCallFingerprint(selected, 1, false), plan, prior);
-  // This is a synthetic repair control. Original paid cancellation is immutable.
-  const corrected = c6fcCurrent.report.split(/\n(?=### R[1-9]\d*:)/).map(row => row.includes('\nState: pending\n')
-    ? row.replace('\nState: pending\n', '\n').replace('History: none', 'History: superseded pre-answer state\n  State: pending') : row).join('\n');
-  expect(check(c6fcCurrent.report)).toBe(false);
-  expect(check(corrected)).toBe(true);
-  for (const bad of [
-    corrected.replace('R1 (D3), R2 (D4), R3 (D5), R4 (D6)', 'R1 (D6), R2 (D4), R3 (D5), R4 (D3)'),
-    corrected.replace('Question D3:', 'Question D3: duplicate current question\nQuestion D3:'),
-    corrected.replace('Question D3:', 'Question D99: conflicting current question\nQuestion D3:'),
-    corrected.replace(/^Reviewed target:.*$/m, target => '```markdown\n' + target + '\n```'),
-    corrected.replace(/^Reviewed target:.*$/m, target => '## History\n' + target + '\n## Current plan'),
-    corrected.replace(/^Reviewed target:.*$/m, target => target + '\n' + target.replace('PLAN.md', 'FOREIGN.md')),
-    corrected.replace('State: approved', 'State: pending'),
-    corrected.replace('State: approved', 'State: approved\nState: pending'),
-    corrected.replace('State: approved', 'State: approved\nState: approved'),
-    corrected.replace('  State: pending', 'State: pending'),
-    corrected.replace('State: approved', 'State: rejected'),
-    corrected.replace('State: approved', 'State: approved\nR1 approval: revoked'),
-    corrected.replace('Approval readiness: PASS', 'Approval readiness: pending'),
-    corrected.replace('Actual answer: "Split into follow-up PR (recommended)" (D3)', 'Actual answer: "Not offered" (D3)'),
-    corrected.replace('Reviewed target: `PLAN.md`', 'Reviewed target: `FOREIGN.md`'),
-    corrected.replace(/^Reviewed target:.*$/m, ''),
-    corrected.replace('## Decision ledger', '## Archived decision ledger'),
-    corrected.replace('# Reviewed Plan: Multi-tenant Auth Refactor', '# Reviewed Plan: Another task'),
-    corrected.replace('NO UNRESOLVED DECISIONS', '1 UNRESOLVED DECISION'),
-    corrected.replace('**T1 (', '**T99 ('),
-    corrected.replace('Accepted scope: remove parallelization', 'Accepted scope: pending; remove parallelization'),
-  ]) expect(check(bad)).toBe(false);
-  for (const edit of [
-    (c: NativePlanQuestionCall) => { c.answered = false; },
-    (c: NativePlanQuestionCall) => { c.failed = true; },
-    (c: NativePlanQuestionCall) => { c.answers = {}; },
-    (c: NativePlanQuestionCall) => { c.sessionId += '-foreign'; },
-    (c: NativePlanQuestionCall) => { const q = c.questions[0]!; const old = q.question; q.question += '\nAlso delete the authentication cache.'; c.answers = { [q.question]: c.answers![old]! }; },
-    (c: NativePlanQuestionCall) => { const q = c.questions[0]!; const old = q.question; q.question += '\nThe decision is reopened.'; c.answers = { [q.question]: c.answers![old]! }; },
-  ]) { const copy = structuredClone(call); edit(copy); expect(check(corrected, copy)).toBe(false); }
-  expect(check(corrected, call, calls.slice(0, -2))).toBe(false);
-  for (const transform of [
-    (text: string) => text.replace('ELI10:', 'Summary:'),
-    (text: string) => text.replace(/^ELI10:.*$/m, ''),
-    (text: string) => text.replace('ELI10:', 'ELI10: duplicate assessment\nELI10:'),
-    (text: string) => text.replace('Project/branch/task:', 'Reviewed scope:'),
-    (text: string) => text.replace(/^Project\/branch\/task:.*$/m, ''),
-    (text: string) => text.replace('Project/branch/task:', 'Project/branch/task: foreign, FOREIGN.md "Another task"; unrelated\nProject/branch/task:'),
-  ]) {
-    const copy = structuredClone(call), q = copy.questions[0]!, answer = copy.answers![q.question]!;
-    q.question = transform(q.question); copy.answers = { [q.question]: answer };
-    expect(check(c6fcCurrent.report, copy)).toBe(false);
-    expect(check(corrected, copy)).toBe(false);
-  }
-  expect(c6fcCurrent.actualOutcome).toBe('CANCELLED');
-});