Add agentkits-memory and agentkits-marketing plugins

[leduclinh7141]

Summary

Adding two plugins from the AgentKits suite:

agentkits-memory (Development Engineering)

Persistent memory system for AI coding assistants with:

• MCP server with 8 tools (save, search, timeline, details, recall, list, update, delete)
• Hybrid search (SQLite FTS5 + vector embeddings)
• Session tracking with automatic summarization
• Context hooks for SessionStart, UserPromptSubmit, PostToolUse, Stop
• Web viewer for browsing memories
• No daemon — single SQLite file

GitHub: https://github.com/aitytech/agentkits-memory
npm: https://www.npmjs.com/package/@aitytech/agentkits-memory

agentkits-marketing (Marketing Growth)

Complete AI marketing toolkit with:

• 18 specialized agents (attraction, conversion, retention, expansion)
• 93 slash commands across 22 categories
• 28 marketing skills (Marketing Psychology, CRO Stack, SEO, etc.)
• 19 training modules in 11 languages

GitHub: https://github.com/aitytech/agentkits-marketing

Both are MIT licensed and available via Claude Code Plugin Marketplace.