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>

CHANGELOG.md

@@ -1,5 +1,15 @@
 # Changelog
 
+## [0.11.3.0] - 2026-03-23 — Design Outside Voices
+
+### Added
+
+- **Every design review now gets a second opinion.** `/plan-design-review`, `/design-review`, and `/design-consultation` dispatch both Codex (OpenAI) and a fresh Claude subagent in parallel to independently evaluate your design — then synthesize findings with a litmus scorecard showing where they agree and disagree. Cross-model agreement = high confidence; disagreement = investigate.
+- **OpenAI's design hard rules baked in.** 7 hard rejection criteria, 7 litmus checks, and a landing-page vs app-UI classifier from OpenAI's "Designing Delightful Frontends" framework — merged with gstack's existing 10-item AI slop blacklist. Your design gets evaluated against the same rules OpenAI recommends for their own models.
+- **Codex design voice in every PR.** The lightweight design review that runs in `/ship` and `/review` now includes a Codex design check when frontend files change — automatic, no opt-in needed.
+- **Outside voices in /office-hours brainstorming.** After wireframe sketches, you can now get Codex + Claude subagent design perspectives on your approaches before committing to a direction.
+- **AI slop blacklist extracted as shared constant.** The 10 anti-patterns (purple gradients, 3-column icon grids, centered everything, etc.) are now defined once and shared across all design skills. Easier to maintain, impossible to drift.
+
 ## [0.11.2.0] - 2026-03-22 — Codex Just Works
 
 ### Fixed