## Summary

Make the integrations overview a general directory for connecting
Stagehand to agents, frameworks, and application workflows. Organize the
overview and sidebar into Agent Frameworks, CLI Agents, and Automations.

- Add dedicated overviews for Agent Frameworks and CLI Agents. Cover
framework connections separately from MCP adapter setup for coding
agents, with Pi documented as a native extension.
- Update navigation and security links, and replace the removed MCP
best-practices entry with the CLI Agents guide.
- Add Stripe under Automations, documenting the Checkout sample from
https://github.com/stripe-samples/webmcp/pull/5, its setup, WebMCP flow,
and final Pay click.
- Pin the Stripe sample commit while the upstream PR is open and explain
its spending limit and result-handling limitations.

## Validation

- `mint validate`
- `mint broken-links --check-anchors --check-redirects --check-snippets`
- `mint a11y --skip-contrast`
- Formatting check for `docs.json` and `git diff --check`

All passed using Node.js 24. Checkout was not executed; the Stripe guide
was verified against the upstream sample source.

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Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>
Co-authored-by: Cursor <cursoragent@cursor.com>