feat: auto-register MCP server and plugins on npm install

docs: add README and MIT license

chore: add .mcp.json for local development

feat: add Claude Code plugin with slash commands

feat: add CLI entry with mcp, install, and install-plugin commands

feat: add MCP prompts for find, sessions, and projects

feat: add MCP server with search tool

feat: add search engine with regex and text matching

feat: add searchable text extractor

feat: add project and session scanner

feat: add JSONL parser with streaming readline

feat: add path resolution and project name decoding

feat: add core type definitions

chore: scaffold project with dependencies

Initial commit: Claude-Search MCP server