Add Seam MCP Server documentation page

[chmaltsp]

Summary

• Adds a new Seam MCP Server page under Developer Tools (docs/developer-tools/seam-mcp.md) with setup instructions for all major MCP clients
• Includes one-click Install in Cursor deeplink button
• Tabbed config snippets for Claude Code, Cursor, Windsurf, VS Code, and Claude Desktop
• Adds a callout on the Quick Start page directing AI-assisted developers to the MCP server
• Adds nav entry in SUMMARY.md under Developer Tools

Test plan

• Verify GitBook renders the page correctly (tabs, hints, code blocks)
• Test the Cursor deeplink URL opens install dialog
• Confirm all JSON config snippets are valid and copy-pasteable
• Verify the Quick Start callout links to the correct page
• Check SUMMARY.md sidebar shows the new entry under Developer Tools

🤖 Generated with Claude Code

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Document Claude Desktop's paid-plan prerequisite

Anthropic's "Getting Started with Custom Connectors Using Remote MCP" help article says remote MCP connectors in Claude Desktop are only available on Pro, Max, Team, and Enterprise. Presenting Settings → Connectors → Add Connector as the default flow here means free-plan Claude Desktop users can follow these steps exactly and still never get a working setup, even though they need the local mcp-remote fallback below instead.

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[chatgpt-codex-connector]

Wrap npx for Claude Desktop on native Windows

This config is also presented for Windows (%APPDATA%\Claude\claude_desktop_config.json), but Anthropic's MCP docs note that native Windows cannot execute npx directly for local MCP servers and requires a cmd /c ... wrapper or the connection closes immediately. As written, Windows users who copy the fallback JSON will get a startup failure instead of a working Seam server.

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