docs: add an approved research-to-memory workflow with Parallel MCP

[georgeatparallel]

📋 Description

Research current public sources with free web search and page fetching from Parallel Search MCP, then retain approved findings in LongMemory for later recall. Anonymous search uses Fast mode with no Parallel account or API key.

The Claude Code guide covers opt-in setup, reviewing evidence before writes, source URLs and check dates, project scope, and removing the search server. Existing configuration and runtime behavior stay unchanged.

I work at Parallel.

🔄 Type of Change

• 📚 Documentation update

Verification

• Core typecheck, smoke benchmark gates, and production build pass.
• Documented Claude Code add/get/remove commands work in isolated configuration; the endpoint reports Connected.
• LongMemory stdio MCP ingest, explain, and strict recall preserve the observation's source URL.
• Guide links, tool fields, and new Markdown header checked.
• pnpm release:check and pnpm branding:check: blocked by tools/branding.mjs, which is absent from the base commit.

Integration checks and VS Code/dashboard builds remain incomplete with optional workspace/application dependencies uninstalled.

📱 Screenshots (if applicable)

Not applicable.

🔍 Code Review Checklist

• Documentation follows existing style and has been self-reviewed.
• No dependent release is required.

📚 Related Issues

No prerequisite issue required for this documentation change.

🚀 Deployment Notes

Follow the guide to add the search server in Claude Code's private project-local scope.

📋 Additional Context

This guide uses the existing LongMemory plugin and MCP tools.