docs: add Polymarket Veto MCP launch guide

[yazcaleb]

Summary

• add new guide: /docs/guides/polymarket-veto-mcp
• document sidecar architecture, simulation/live model, and tool coverage
• link new guide from MCP Gateway, MCP Integration, and docs index
• update public/llms.txt with Polymarket showcase guide link

Validation

• pnpm build

[yazcaleb]

@Greptile please review this docs PR for correctness, clarity, and consistency with current CLI behavior.

[greptile-apps]

Greptile Summary

This PR adds comprehensive documentation for the Polymarket Veto MCP integration, introducing a new guide that demonstrates how to run Polymarket trading tools safely behind Veto policies. The guide covers architecture, installation, policy profiles, simulation vs live execution modes, and tool coverage.

Key additions:

• New guide at /docs/guides/polymarket-veto-mcp with clear step-by-step instructions
• Proper cross-linking from MCP Gateway, MCP Integration, and main docs index
• Added to llms.txt for agent discoverability
• Positioned prominently in navigation (top of guides list in meta.json)

Documentation quality:

• Well-structured with numbered sections and clear progression
• Includes safety mechanisms (three-step check for live trading)
• Proper code examples with consistent package naming (@vulnzap/polymarket-veto-mcp)
• Comprehensive tool coverage list distinguishing read-only, mutating, and unexposed operations
• All internal links verified and point to existing pages

Confidence Score: 5/5

• This documentation-only PR is completely safe to merge with no risk
• All changes are pure documentation additions with no code execution, proper markdown formatting, verified internal links, consistent cross-referencing, and clear technical content
• No files require special attention

Important Files Changed

Filename	Overview
content/docs/guides/polymarket-veto-mcp.mdx	New guide documenting Polymarket MCP integration with clear architecture, safety mechanisms, and tool coverage
content/docs/guides/meta.json	Added new guide to navigation at top of pages array for prominent placement
public/llms.txt	Added Polymarket showcase link to Cloud + MCP section for agent discoverability

_{Last reviewed commit: 3129e66}