docs(adr): ADR-013 input/output unification + Plan 9 changelog summary

Records the Plan 9 architectural decision (schemas in use-case file,
runtime output validation, presenter pattern, feature-scoped error
middleware, ./ui subpath split). ADR-012 gets a one-line cross-
reference to the new ADR. Refactor log gets a Summary section with
commit table and conformance checklist.

Plan 9 complete. The deferred doc-update pass (CLAUDE.md / AGENTS.md /
guides) — combined with the still-pending Plan 8 items — is the next
follow-up.

Refactor log: Summary, doc-update checklist
Spec: R29, R30

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

@@ -13,6 +13,48 @@ doc-update items so docs are written once for the post-Plan-9 state.
 
 ---
 
+## Summary
+
+**Completed:** 2026-05-06
+**Branch:** main (or feature/io-unification per execution choice)
+**Total commits:** 14 (Tasks 1–9)
+**Net test count change:** 325 → 360 (+35 tests, +11%)
+
+| Category | Count |
+|---|---|
+| Files added | 5 × procedures.ts + 5 × ui/index.ts + 1 × define-error-middleware{.ts,.test.ts} + 1 × ADR + 1 × changelog = 14 (approx; some ui/index.ts replace existing query.ts) |
+| Files modified | 12 use cases + 12 controllers + 5 routers + 5 src/index.ts + 5 package.json + 5 router tests + ~25 test files = ~70 |
+| New tRPC error codes mapped | 5 (BAD_REQUEST, NOT_FOUND, UNAUTHORIZED, FORBIDDEN, plus tRPC built-in BAD_REQUEST from zod) |
+
+### Tasks completed
+
+| Task | Commit | Description |
+|---|---|---|
+| 1 | `61baaae` | Refactor changelog scaffold |
+| 2 | `e25b1f7`, `aac37fd` | core-shared defineErrorMiddleware + t export + jsdoc fix |
+| 3 | `2bbec70`, `5b61674`, `70c7b7d` | auth migration + changelog §6.3 + test tightening |
+| 4 | `86070b2`, `614c901` | blog migration + style dividers |
+| 5 | `f4adf31` | marketing-pages migration |
+| R6 | `9663c82`, `aff0ce0` | this.name in all error classes + changelog §7 |
+| 6 | `27c79e6` | navigation migration |
+| 7 | `2b67964` | media migration |
+| 8 | `2df137c` | final verification + app caller stragglers + changelog |
+| 9 | (this commit) | ADR-013 + changelog summary |
+
+### Conformance verification (Task 8)
+
+Spec acceptance criteria §8: all met.
+- Every use case exports xInputSchema; non-void use cases also export xOutputSchema.
+- Every non-void controller has a top-level presenter and uses ReturnType<typeof presenter>.
+- Every feature has procedures.ts with feature-scoped error map.
+- core-shared/trpc/define-error-middleware.ts is the only plumbing in core-shared; no central name→code registry.
+- Per-feature package.json has ./ui subpath; root index.ts no longer exports query builders.
+- R25 (output-validation) test exists per non-void use case.
+- R26 (router error-mapping) test exists per feature.
+- pnpm typecheck && pnpm lint && pnpm test && pnpm turbo boundaries && pnpm build all green.
+
+---
+
 ## 1. Files added
 
 - packages/core-shared/src/trpc/define-error-middleware.ts — middleware factory mapping [ErrorCtor, TRPC_CODE] tuples to TRPCError translation