feat: design outside voices — cross-model design critique (v0.11.3.0) (#347)

* feat(gen-skill-docs): add design outside voices + hard rules resolvers

Add generateDesignOutsideVoices() — parallel Codex + Claude subagent
dispatch for cross-model design critique with litmus scorecard synthesis.
Branches per skillName (plan-design-review, design-review, design-consultation)
with task-specific reasoning effort (high for analytical, medium for creative).

Add generateDesignHardRules() — OpenAI Frontend Skill hard rules + gstack
AI slop blacklist unified into one shared block with classifier step
(landing page vs app UI vs hybrid).

Extract AI_SLOP_BLACKLIST constant from inline prose in generateDesignMethodology()
for DRY. Extend generateDesignReviewLite() with lightweight Codex block.
Extend generateDesignSketch() with outside voices opt-in after wireframe.

Source: OpenAI "Designing Delightful Frontends with GPT-5.4" (Mar 2026)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat(design skills): add outside voices + hard rules to all design templates

Insert {{DESIGN_OUTSIDE_VOICES}} in plan-design-review (between Step 0D
and Pass 1), design-review (between Phase 6 and Phase 7), and
design-consultation (between Phase 2 and Phase 3).

Insert {{DESIGN_HARD_RULES}} in plan-design-review Pass 4 and design-review
Phase 3 checklist.

DESIGN_REVIEW_LITE in /ship and /review now includes a Codex design voice
block with litmus checks.

DESIGN_SKETCH in /office-hours now includes outside voices opt-in after
wireframe approval.

Regenerated all SKILL.md files (both Claude and Codex hosts).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* test: add resolver tests + touchfiles for design outside voices

Add 18 test cases across 4 new describe blocks:
- DESIGN_OUTSIDE_VOICES: host guard, skillName branching, reasoning effort
- DESIGN_HARD_RULES: classifier, 3 rule sets, slop blacklist, OpenAI criteria
- DESIGN_SKETCH extended: outside voices step, original wireframe preserved
- DESIGN_REVIEW_LITE extended: Codex block, codex host exclusion

Update touchfiles: add scripts/gen-skill-docs.ts to design skill E2E
test dependencies for accurate diff-based test selection.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: bump version and changelog (v0.11.3.0)

Design outside voices — parallel Codex + Claude subagent for cross-model
design critique with litmus scorecard synthesis. OpenAI hard rules + gstack
slop blacklist unified. Classifier for landing page vs app UI.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: generate .agents/ on demand in tests (not checked in since v0.11.2.0)

.agents/ is gitignored since v0.11.2.0 — tests that read Codex-host
SKILL.md files now generate them on demand via `bun run gen-skill-docs.ts
--host codex` before reading. Fixes test failures on fresh clones.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

office-hours/SKILL.md

@@ -731,6 +731,35 @@ Reference the wireframe screenshot in the design doc's "Recommended Approach" se
 The screenshot file at `/tmp/gstack-sketch.png` can be referenced by downstream skills
 (`/plan-design-review`, `/design-review`) to see what was originally envisioned.
 
+**Step 6: Outside design voices** (optional)
+
+After the wireframe is approved, offer outside design perspectives:
+
+```bash
+which codex 2>/dev/null && echo "CODEX_AVAILABLE" || echo "CODEX_NOT_AVAILABLE"
+```
+
+If Codex is available, use AskUserQuestion:
+> "Want outside design perspectives on the chosen approach? Codex proposes a visual thesis, content plan, and interaction ideas. A Claude subagent proposes an alternative aesthetic direction."
+>
+> A) Yes — get outside design voices
+> B) No — proceed without
+
+If user chooses A, launch both voices simultaneously:
+
+1. **Codex** (via Bash, `model_reasoning_effort="medium"`):
+```bash
+TMPERR_SKETCH=$(mktemp /tmp/codex-sketch-XXXXXXXX)
+codex exec "For this product approach, provide: a visual thesis (one sentence — mood, material, energy), a content plan (hero → support → detail → CTA), and 2 interaction ideas that change page feel. Apply beautiful defaults: composition-first, brand-first, cardless, poster not document. Be opinionated." -s read-only -c 'model_reasoning_effort="medium"' --enable web_search_cached 2>"$TMPERR_SKETCH"
+```
+Use a 5-minute timeout (`timeout: 300000`). After completion: `cat "$TMPERR_SKETCH" && rm -f "$TMPERR_SKETCH"`
+
+2. **Claude subagent** (via Agent tool):
+"For this product approach, what design direction would you recommend? What aesthetic, typography, and interaction patterns fit? What would make this approach feel inevitable to the user? Be specific — font names, hex colors, spacing values."
+
+Present Codex output under `CODEX SAYS (design sketch):` and subagent output under `CLAUDE SUBAGENT (design direction):`.
+Error handling: all non-blocking. On failure, skip and continue.
+
 ---
 
 ## Phase 4.5: Founder Signal Synthesis