feat: add frictionless RA-H OS setup

- Add MCP setup, doctor, init-db, config, and rules CLI commands
- Publish latest MCP package wiring and local setup helper
- Update OS install docs for MCP-only, full app, and demo-safe setup

Generated with Claude Code

CLAUDE.md

@@ -13,11 +13,15 @@ Open-source, local-first knowledge graph app with MCP integration.
 git clone https://github.com/bradwmorris/ra-h_os.git
 cd ra-h_os
 npm install
-npm rebuild better-sqlite3
-scripts/dev/bootstrap-local.sh
+npm run setup:local
 npm run dev
 ```
 
+## MCP Setup
+```bash
+npx -y ra-h-mcp-server@latest setup --client claude-code --yes
+```
+
 ## Source of Truth for Workflow
 - `AGENTS.md` - agent and contributor workflow
 - `CONTRIBUTING.md` - PR and contribution policy