docs(refactor-log): reconcile commit count + test delta inconsistencies

Final reviewer flagged two changelog inaccuracies:
- Summary said 14 commits; actual is 15 (88db39b..HEAD).
- §7 Task 8 said +144 tests; correct delta is +35 (325 → 360, +11%).
  The +144 figure was a typo from the implementer's draft.

Both reconciled. Plan 9 ships.

docs/superpowers/refactor-logs/2026-05-06-input-output-unification.md

@@ -17,7 +17,7 @@ doc-update items so docs are written once for the post-Plan-9 state.
 
 **Completed:** 2026-05-06
 **Branch:** main (or feature/io-unification per execution choice)
-**Total commits:** 14 (Tasks 1–9)
+**Total commits:** 15 (Tasks 1–9, including the R6 fix-up + auth code-review tightening + blog style sweep + 2× refactor-log catch-up commits)
 **Net test count change:** 325 → 360 (+35 tests, +11%)
 
 | Category | Count |
@@ -200,7 +200,7 @@ media: 4 new R26 tests in router.test.ts — NOT_FOUND on getMedia with nonexist
 ### Plan 9 final verification (Task 8, 2026-05-06)
 
 - pnpm typecheck / lint / test / turbo boundaries / build: all green after fixing 2 Plan 9 regressions in app callers (see stragglers below).
-- Total tests: 360 across 15 test suites. Net delta vs pre-Plan-9: +144 tests (Plan 9 added R25 output-validation + R26 router error-mapping + R27/R28 presenter shape tests across all 5 features).
+- Total tests: 360 across 15 test suites. Net delta vs pre-Plan-9 baseline of 325 (post-Plan-8): +35 tests, +11% (Plan 9 added R25 output-validation + R26 router error-mapping + R27/R28 presenter shape tests across all 5 features).
 - Spec §8 acceptance criteria sweep:
   - All non-test use cases export xInputSchema. ✓
   - Non-void use cases also export xOutputSchema (void exempt: sign-out, delete-media). ✓