Add Process Street MCP Server

[vpatankar]

Summary

• Add a source-backed Process Street MCP Server entry for its official hosted Streamable HTTP endpoint.
• Include practical Claude Code and JSON setup, source provenance, safety notes, privacy notes, and a duplicate check.

Submission Source

• This PR changes exactly one content/<category>/<slug>.mdx file.
• The entry includes source/provenance URLs and practical install/use details.
• submittedBy and submittedByUrl match the PR author.
• I did not modify README.md, generated registry outputs, downloads, workflows, packages, scripts, or multiple content entries.
• I did not request HeyClaude-hosted package hosting.
• No linked issue is required because this is a direct single-entry content submission.

Schema and Quality Checks

• pnpm validate:content:strict passed.
• No forbidden fields were added.
• Install, use, and copy paths are practical and complete.

Quality Evidence

• Changed route: the generated MCP detail page for process-street-mcp-server.
• Expected behavior: the directory can render a source-backed Process Street entry with hosted HTTP setup and safety/privacy guidance.
• Important invariant: the public repository is discovery metadata for a private hosted implementation, so the entry does not claim a public source package.
• Backward compatibility: content-only addition with no existing entry changed.
• Screenshots: No visual impact. This PR adds one content record without changing the page or component implementation.
• Accessibility: no UI behavior changed.
• Focused test: pnpm validate:content:strict passed.

Validation

• I did not run generation or commit generated output.
• I ran the focused content validation.
• I spot-checked the new source file and official links.

Notes

• No linked issue. This is a direct single-entry content submission for Process Street's official hosted MCP server.
• The public repository contains connection metadata and documentation. The server implementation is private and hosted by Process Street.