fix(ci): prune six phantom paths from the shard-timing snapshot, red on main since their features died (#3040)

## Six phantom paths in the shard-timing snapshot

```
AssertionError: timing snapshot references missing test files:
packages/core/src/__tests__/dependency-blocked-todo-report.test.ts
packages/core/src/__tests__/workflow-parity.test.ts
packages/engine/src/__tests__/dependency-blocked-todo-reporter.test.ts
packages/engine/src/__tests__/reliability-interactions/meta-archive-guard-composition.test.ts
packages/engine/src/__tests__/reliability-interactions/meta-chain-auto-close.test.ts
packages/engine/src/__tests__/self-healing-meta-archive-guards.test.ts
```

The guard's own note says why this matters past the red assertion:
*"stale or phantom-path entries silently degrade CI shard balancing and
can hide merge-gate regressions."*

**The balancing cost is not academic.**
`self-healing-meta-archive-guards` carried **20700 ms**. A shard has
been budgeting 20.7 seconds for a file that cannot run, plus five more.

## Deleted, not moved — checked one at a time

A moved test should be **repointed** to keep its measurement; only a
deleted one should be dropped. So I resolved each rather than assuming:

| file | deleted by |
| --- | --- |
| `dependency-blocked-todo-report` / `-reporter` | `710d56b2db` — U4
trim, the feature deletion |
| `workflow-parity` | `4158cf1ab7` — Phase A workflow-owned lifecycle |
| `meta-archive-guard-composition`, `meta-chain-auto-close`,
`self-healing-meta-archive-guards` | `0e3d2a2265` — meta-task
auto-archive/auto-close deletion |

All six died with their features. None has a surviving equivalent
anywhere in `packages/`.

## Pruned, not regenerated

Regenerating means a full measured suite run and rewrites all 2499
entries — burying six deletions inside a wholesale diff nobody can
review. `capturedAt` is **6.8 days old against a 30-day budget**, so the
snapshot is otherwise current and the other **2493 measurements are
untouched**.

The diff is exactly six deleted lines, `capturedAt` unchanged.

## Revert proof

Pruning a list is worthless if the assertion cannot fail afterwards, so
I re-introduced a phantom entry:

```
with a fake path   →  ℹ pass 11   ℹ fail 1   (references missing test files)
removed            →  ℹ pass 12   ℹ fail 0
```

## Third of the red suites, and still not a sweep

Mechanical, like `verify-fast` (#3038). Unlike
`workflow-reliability-release-check`, whose acceptance map cites 13 test
files with **8 missing** and **2 of 5 rows carrying zero surviving
evidence** — that one needs its owner, and a repoint would launder the
gap (diagnosed on #3036).

Same failure phrasing, opposite safety. That is why these are going one
at a time.

## Verification (measured)

- this suite — **12 passed / 0 failed** (was 1 failed)
- snapshot integrity — 2493 files retained, `capturedAt` unchanged, no
reformatting

No changeset: CI tooling data.

scripts/test-timings.json

@@ -372,7 +372,6 @@
         "packages/core/src/__tests__/daemon-token.test.ts": 100,
         "packages/core/src/__tests__/default-workflow-hooks.test.ts": 100,
         "packages/core/src/__tests__/delete-task-if-planning.test.ts": 1400,
-        "packages/core/src/__tests__/dependency-blocked-todo-report.test.ts": 100,
         "packages/core/src/__tests__/docker-client.test.ts": 100,
         "packages/core/src/__tests__/docker-provisioning.test.ts": 100,
         "packages/core/src/__tests__/duplicate-detection.test.ts": 100,
@@ -674,7 +673,6 @@
         "packages/core/src/__tests__/workflow-lifecycle-traits.test.ts": 100,
         "packages/core/src/__tests__/workflow-lifecycle-validation.test.ts": 100,
         "packages/core/src/__tests__/workflow-optional-steps.test.ts": 100,
-        "packages/core/src/__tests__/workflow-parity.test.ts": 100,
         "packages/core/src/__tests__/workflow-prompt-overrides.test.ts": 100,
         "packages/core/src/__tests__/workflow-settings-resolver.test.ts": 100,
         "packages/core/src/__tests__/workflow-step-results.test.ts": 100,
@@ -1826,7 +1824,6 @@
         "packages/engine/src/__tests__/custom-providers-openai-completions.test.ts": 100,
         "packages/engine/src/__tests__/custom-providers-openai-responses.test.ts": 100,
         "packages/engine/src/__tests__/custom-providers.test.ts": 100,
-        "packages/engine/src/__tests__/dependency-blocked-todo-reporter.test.ts": 100,
         "packages/engine/src/__tests__/derive-subject-summary.test.ts": 100,
         "packages/engine/src/__tests__/detect-pseudo-pause.test.ts": 100,
         "packages/engine/src/__tests__/distributed-claim-mutex.integration.test.ts": 1400,
@@ -2149,8 +2146,6 @@
         "packages/engine/src/__tests__/reliability-interactions/merge-request-shadow-handoff.test.ts": 100,
         "packages/engine/src/__tests__/reliability-interactions/merge-runner-spawn-enoent-prevention.test.ts": 15100,
         "packages/engine/src/__tests__/reliability-interactions/merge-strategy-and-overlap.test.ts": 2600,
-        "packages/engine/src/__tests__/reliability-interactions/meta-archive-guard-composition.test.ts": 2400,
-        "packages/engine/src/__tests__/reliability-interactions/meta-chain-auto-close.test.ts": 3400,
         "packages/engine/src/__tests__/reliability-interactions/misrouted-foreign-commit.real-git.test.ts": 700,
         "packages/engine/src/__tests__/reliability-interactions/mission-stranded-feature-retriage.test.ts": 100,
         "packages/engine/src/__tests__/reliability-interactions/mission-validation-trigger-gap.test.ts": 100,
@@ -2269,7 +2264,6 @@
         "packages/engine/src/__tests__/self-healing-ghost-branch-recovery.test.ts": 100,
         "packages/engine/src/__tests__/self-healing-in-progress-limbo.test.ts": 100,
         "packages/engine/src/__tests__/self-healing-leaked-slot-reaper.test.ts": 100,
-        "packages/engine/src/__tests__/self-healing-meta-archive-guards.test.ts": 20700,
         "packages/engine/src/__tests__/self-healing-model-unavailable-recovery.test.ts": 100,
         "packages/engine/src/__tests__/self-healing-orphan-only-scope.real-git.test.ts": 200,
         "packages/engine/src/__tests__/self-healing-orphan-only-scope.test.ts": 100,