Add Claude Code plugin and skill distribution

[renardeinside]

Summary

• Add distributable Claude Code plugin with MCP server registration, skills, and hooks
• Add standalone skill installer (claude-skill/install.sh) for knowledge-only mode
• Add documentation page for both installation modes

Details

Plugin mode (full experience):

• .claude-plugin/ — marketplace catalog + plugin manifest
• .mcp.json — registers apx mcp stdio server
• hooks/hooks.json — SessionStart hook for CLI availability check
• skills/apx/ — SKILL.md + backend-patterns.md + frontend-patterns.md

Skill mode (lightweight):

• claude-skill/install.sh — downloads skill files to .claude/skills/apx/ (supports --global)

Content:

• De-templatized from existing SKILL.md.jinja2 and CLAUDE.md.jinja2
• All 13 MCP tools documented (added missing routes and list_registry_components)
• Deep backend patterns: 3-model, CRUD routers, DI, lifespan, AppConfig
• Deep frontend patterns: Suspense, mutations, selector, component conventions

Test plan

• All 13 MCP tools listed in SKILL.md
• All JSON files parse correctly
• Scripts are executable
• Run bash claude-skill/install.sh in a temp dir to verify downloads
• Install as Claude Code plugin and verify MCP tools work
• Verify docs page renders in dev server

🤖 Generated with Claude Code