chore: bump version and changelog (v0.15.3.0)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## [0.15.3.0] - 2026-04-03 — Developer Experience Review
+
+You can now review plans for DX quality before writing code. `/plan-devex-review` rates 8 dimensions (getting started, API design, error messages, docs, upgrade path, dev environment, community, measurement) on a 0-10 scale with trend tracking across reviews. After shipping, `/devex-review` uses the browse tool to actually test the live experience and compare against plan-stage scores.
+
+### Added
+
+- **/plan-devex-review skill.** Plan-stage DX review based on Addy Osmani's framework. Auto-detects product type (API, CLI, SDK, library, platform, docs, Claude Code skill). Includes developer empathy simulation, DX scorecard with trends, and a conditional Claude Code Skill DX checklist for reviewing skills themselves.
+- **/devex-review skill.** Live DX audit using the browse tool. Tests docs, getting started flows, error messages, and CLI help. Each dimension scored as TESTED, INFERRED, or N/A with screenshot evidence. Boomerang comparison: plan said TTHW would be 3 minutes, reality says 8.
+- **DX Hall of Fame reference.** On-demand examples from Stripe, Vercel, Elm, Rust, htmx, Tailwind, and more, loaded per review pass to avoid prompt bloat.
+- **`{{DX_FRAMEWORK}}` resolver.** Shared DX principles, characteristics, and scoring rubric for both skills. Compact (~150 lines) so it doesn't eat context.
+- **DX Review in the dashboard.** Both skills write to the review log and show up in the Review Readiness Dashboard alongside CEO, Eng, and Design reviews.
+
 ## [0.15.2.1] - 2026-04-02 — Setup Runs Migrations
 
 `git pull && ./setup` now applies version migrations automatically. Previously, migrations only ran during `/gstack-upgrade`, so users who updated via git pull never got state fixes (like the skill directory restructure from v0.15.1.0). Now `./setup` tracks the last version it ran at and applies any pending migrations on every run.

VERSION

@@ -1 +1 @@
-0.15.2.1
+0.15.3.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gstack",
-  "version": "0.15.2.0",
+  "version": "0.15.3.0",
   "description": "Garry's Stack — Claude Code skills + fast headless browser. One repo, one install, entire AI engineering workflow.",
   "license": "MIT",
   "type": "module",