Dev Release Regression Check

## Who Is This For

Developers who ship code frequently and need to catch regressions before users do. This plugin runs a structured release check — comparing test results, running browser smoke tests, and generating bilingual release notes — so every deployment is auditable and safe to ship.

## 3-Step Quickstart

1. **Run regression guard** — paste your test output into chat and ask: `"Compare my test results against the last build and flag any regressions"`. The guard-regression skill checks build outcomes and performance baselines.
2. **Run browser smoke test** — ask: `"Use playwright-browser-automation to open https://yourapp.com and verify the login flow works"`. Playwright auto-detects the dev server and writes a clean test script.
3. **Generate release notes** — ask: `"Use github-release-assistant to generate release notes for v1.2.3 in English and Chinese from the repo"`. You get both README.md and README.zh.md ready to publish.

## Step → Skill → Input → Output

| Step | Skill | What You Provide | What You Get |
|------|-------|------------------|--------------|
| Regression check | guard-regression | Test output + previous build results | Pass/fail report with regression list |
| Smoke test | playwright-browser-automation | Target URL + flow to test | Test script + pass/fail result |
| Release notes | github-release-assistant | Repo name + version tag | Bilingual release docs (EN + ZH) |

## Common Failures & Fixes

- **Regression guard says "no previous baseline"** → First run always creates a baseline. Run it twice; the second run will compare.
- **Playwright fails to detect dev server** → Ensure your server is running on a local port. Provide the URL explicitly: `"test https://localhost:3000"`.
- **Release notes are missing commits** → Check that the version tag exists in the repo. Use `git tag v1.2.3 && git push --tags` first.

## Success Criteria

You know it worked when:
- guard-regression returns a green comparison report (zero new failures)
- playwright-browser-automation completes the smoke test with no errors
- github-release-assistant outputs both an English and Chinese release document