test: retire the finding-count cluster and trim its helpers (C)

- C0/C1: the five never-green evals (skill-e2e-autoplan-chain and
  skill-e2e-plan-{ceo,eng,design,devex}-finding-count) failed on harness and
  budget, never on skill behavior; delete them, their touchfile/tier ids,
  AUTOPLAN_CHAIN_BUDGET and the dedicated eighth periodic slice (--slices 7).
- C2: delete the helper groups whose only paid consumers were those files
  (11 modules), trim claude-pty-runner and eng-seeded-coverage to the paid
  closure, and delete the free replay tests whose assertions exercised only
  that dead code (89 files, 135 orphaned fixtures). Blocks that used dead code
  only as input for a live subject keep their assertions: the multiSelect
  default moved to plan-review-decisions, runner PTY tests use inline caller
  policies, and the timer-safe budget checks moved to eng-finding-retry-budget.
- The eight production-touching files stay except ceo-current-decision-record
  (its template read only feeds the retired counter).
- CARVE_GUARDS.autoplan is behavioral 'none'; TODOS records the lost chain
  and per-finding cadence coverage with their re-entry tests.

test/helpers/eval-budgets.ts

@@ -43,44 +43,24 @@ export const ALL_TIERS = {
   PTY_LONG_MS,
 } as const;
 
-/**
- * Explicit exception for one uninterrupted four-phase workflow. These are
- * specified allowances, not measured latency or a conservative confidence bound.
- * The historical 900-second failure remains a failure. Ordinary tiers do not grow.
- */
-export const AUTOPLAN_CHAIN_BUDGET = {
-  id: 'autoplan-four-native-phases-v1',
-  file: 'test/skill-e2e-autoplan-chain.test.ts',
-  workMs: 4 * PTY_LONG_MS,
-  sessionMs: 84 * 60_000,
-  testMs: 85 * 60_000,
-  shardMs: 172 * 60_000,
-  retries: 1,
-  shardReserveMs: 2 * 60_000,
-  ciJobMs: 200 * 60_000,
-  ciReserveMs: 28 * 60_000,
-  reason: 'One command must complete CEO, Design, DX and Eng, including native reviews and amendment handoffs.',
-} as const;
+/** Supervision reserve added to every registered whole-file wall. */
+export const SHARD_RESERVE_MS = 2 * 60_000;
 
 /** Whole-file supervision must cover each existing attempt and its retry.
- * These six fixtures already allow 25 minutes per case; the old 30-minute
+ * These fixtures already allow 25 minutes per case; the old 30-minute
  * wall could kill a second attempt after five minutes. No case budget grows.
  * Reserve the sequential upper bound even when Bun runs sibling cases together.
  */
 export const FINDING_RETRY_BUDGETS = [
-  { file: 'test/skill-e2e-plan-ceo-finding-count.test.ts', cases: 2 },
   { file: 'test/skill-e2e-plan-ceo-split-overflow.test.ts', cases: 1 },
-  { file: 'test/skill-e2e-plan-design-finding-count.test.ts', cases: 1 },
-  { file: 'test/skill-e2e-plan-devex-finding-count.test.ts', cases: 1 },
-  { file: 'test/skill-e2e-plan-eng-finding-count.test.ts', cases: 1 },
   { file: 'test/skill-e2e-plan-eng-multi-finding-batching.test.ts', cases: 1 },
 ].map(({ file, cases }) => ({
   file, cases,
   id: `${file.slice('test/skill-e2e-'.length, -'.test.ts'.length)}-existing-retry-v1`,
   testMs: 1_500_000,
   retries: 1,
-  shardReserveMs: AUTOPLAN_CHAIN_BUDGET.shardReserveMs,
-  shardMs: cases * 1_500_000 * 2 + AUTOPLAN_CHAIN_BUDGET.shardReserveMs,
+  shardReserveMs: SHARD_RESERVE_MS,
+  shardMs: cases * 1_500_000 * 2 + SHARD_RESERVE_MS,
 }));
 
 /** Three existing captures and one configured retry; only supervision grows. */
@@ -90,8 +70,8 @@ export const AUQ_CONSISTENCY_RETRY_BUDGET = {
   cases: 1,
   testMs: 3 * CAPTURE_MS + 60_000,
   retries: 1,
-  shardReserveMs: AUTOPLAN_CHAIN_BUDGET.shardReserveMs,
-  shardMs: (3 * CAPTURE_MS + 60_000) * 2 + AUTOPLAN_CHAIN_BUDGET.shardReserveMs,
+  shardReserveMs: SHARD_RESERVE_MS,
+  shardMs: (3 * CAPTURE_MS + 60_000) * 2 + SHARD_RESERVE_MS,
 } as const;
 
 /** These fixtures have a fixed case count in every supported tier. */
@@ -124,16 +104,14 @@ export const FILE_RETRY_BUDGETS = [
   ].map(({ file, attemptMs, retries }) => ({
     file, attemptMs, retries,
     id: `${file.slice('test/'.length, -'.test.ts'.length)}-existing-retry-v1`,
-    shardReserveMs: AUTOPLAN_CHAIN_BUDGET.shardReserveMs,
-    shardMs: attemptMs * (retries + 1) + AUTOPLAN_CHAIN_BUDGET.shardReserveMs,
+    shardReserveMs: SHARD_RESERVE_MS,
+    shardMs: attemptMs * (retries + 1) + SHARD_RESERVE_MS,
   })),
 ];
 
-/** The only registered over-tier test budget; arbitrary per-file escapes fail. */
+/** No paid test may exceed the ordinary tiers; arbitrary per-file escapes fail. */
 export function assertPaidTestBudget(file: string, ms: number): void {
-  if (!Number.isSafeInteger(ms) || ms <= 0 ||
-      (ms > PTY_LONG_MS * 1.25 &&
-       (file !== AUTOPLAN_CHAIN_BUDGET.file || ms !== AUTOPLAN_CHAIN_BUDGET.testMs))) {
+  if (!Number.isSafeInteger(ms) || ms <= 0 || ms > PTY_LONG_MS * 1.25) {
     throw new Error(`Unregistered paid test budget: ${file}: ${ms}`);
   }
 }