feat: experimental SSR + hydration

[fveiraswww]

Important: Please ensure your pull request is targeting the canary branch. PRs to other branches may be closed or require retargeting.

Summary

adds SSR + hydration support for react components in MCP tools. Instead of writing tools that return plain text or JSON, you can now write tools as React components (.tsx files) that are:

• server-rendered to .html
• sent to the client as a resource via ui://widget/{tool-name}.html
• hydrated on the client to become fully interactive

Type of Change

• Bug fixing
• Adding a feature
• Improving documentation
• Adding or updating examples
• Performance - bundle size improvement (if applicable)

Affected Packages

• xmcp (core framework)
• create-xmcp-app
• init-xmcp
• Documentation
• Examples

Screenshots/Examples

Related Issues

[vercel]

@fveiraswww is attempting to deploy a commit to the basement Team on Vercel.

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