feat(skills): add research-summarizer and docker-development agent skills
research-summarizer (product-team/):
- Structured research summarization for papers, articles, reports
- Slash commands: /research:summarize, /research:compare, /research:cite
- Python tools: extract_citations.py (5 citation formats), format_summary.py (6 templates)
- References: summary-templates.md, citation-formats.md
docker-development (engineering/):
- Dockerfile optimization, compose orchestration, container security
- Slash commands: /docker:optimize, /docker:compose, /docker:security
- Python tools: dockerfile_analyzer.py (15 rules), compose_validator.py (best practices)
- References: dockerfile-best-practices.md, compose-patterns.md
Both skills include .claude-plugin/plugin.json and follow POWERFUL tier conventions.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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