feat(engineering): add browser-automation and spec-driven-workflow skills
browser-automation (564-line SKILL.md, 3 scripts, 3 references):
- Web scraping, form filling, screenshot capture, data extraction
- Anti-detection patterns, cookie/session management, dynamic content
- scraping_toolkit.py, form_automation_builder.py, anti_detection_checker.py
- NOT testing (that's playwright-pro) — this is automation & scraping
spec-driven-workflow (586-line SKILL.md, 3 scripts, 3 references):
- Spec-first development: write spec BEFORE code
- Bounded autonomy rules, 6-phase workflow, self-review checklist
- spec_generator.py, spec_validator.py, test_extractor.py
- Pairs with tdd-guide for red-green-refactor after spec
Updated engineering plugin.json (31 → 33 skills).
Added both to mkdocs.yml nav and generated docs pages.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
97952ccbee