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.

TODOS.md

@@ -961,7 +961,7 @@ coverage fill. Remaining, in rough priority order:
   semantics-preserving; keep the daemon path for remote callers), plus a
   namespace hint appended to read-commands.ts:313's error. Effort S.
 - **P2 — PTY boot-readiness wait.** The PTY tests' Bun.sleep(8000) preludes
-  and invokeAndObserve's 6s boot_grace_ms are blind waits; a real readiness
+  are blind waits; a real readiness
   waitFor needs empirical CLI 2.1.x ready-marker probing in a working
   terminal environment (this sandbox's PTY probe wedged). Effort S, needs a
   dev machine.
@@ -4102,9 +4102,9 @@ makes live agents start skipping a section. The canary is the only
 mechanism that catches that, from real usage.
 
 **Context:** Deferred from the carve-guard-hardening plan (D5→T2, codex
-outside-voice #7). `test/helpers/transcript-section-logger.ts` exists but
-is built for deterministic test transcripts + ship action fingerprints,
-NOT real-session drift — it needs rework before it can back this. Ship
+outside-voice #7). The deterministic `test/helpers/transcript-section-logger.ts`
+was deleted in the 2026-09 test audit (no paid or production caller; see
+docs/test-audit-2026-09.md); a real-session logger starts from scratch. Ship
 the deterministic guards first; add this once they've proven useful. The
 carved-skill set + each skill's `requiredReads` are already declared in
 `test/helpers/carve-guards.ts`, so the canary reads its expectations
@@ -4112,7 +4112,7 @@ from there.
 
 **Effort:** M (human ~2d, CC ~4h).
 
-**Depends on:** `transcript-section-logger.ts` real-session-drift rework.
+**Depends on:** a real-session section-read logger (none exists today).
 
 ### P2: Harden behavioral section-loading test hermeticity