docs: add PZERO hosted inference MCP to example servers

Issue Category

Suggestion for existing article

Affected Documentation Page URL

https://docs.continue.dev/customize/deep-dives/mcp-examples
(source: docs/customize/deep-dives/mcp-examples.mdx)

Issue Description

The example MCP servers page has Sentry, Slack, Linear, PostHog, Supabase, Netlify, GitHub, etc. None of the current examples are a hosted inference connector (chat / image / video over MCP). Continue users who want an OpenAI-compatible prepaid inference backend currently have to leave the docs to find one.

PZERO is already on the Official MCP Registry as studio.pzero/mcp (remote streamable-http). Health: GET https://mcp.pzero.studio/healthz → 200. Docs: https://docs.pzero.studio/agents/mcp

Cannot open a PR from this token (fork is blocked). Suggested patch below.

Affiliation: submitted on behalf of PZERO.

Expected Content

Add a PZERO section after an existing remote streamable-http example (PostHog / Supabase shape). Also add pzero to the page keywords.

mcpServers:
  - name: PZERO
    type: streamable-http
    url: https://mcp.pzero.studio/mcp
    apiKey: ${{ secrets.PZERO_API_KEY }}

PZERO_API_KEY is a pzero_… Bearer key. Sign-in is free; spend is prepaid USDC on Base (min 1 USDC). Venice-only upstream. Human docs: https://docs.pzero.studio/agents/mcp Machine copy: https://api.pzero.studio/MCP.md

Verify:

curl -sS "https://registry.modelcontextprotocol.io/v0.1/servers?search=studio.pzero"

Returns studio.pzero/mcp v1.0.0 active/latest.

Open docs/customize/deep-dives/mcp-examples.mdx and compare the existing remote streamable-http examples, especially PostHog or Supabase. Add the PZERO section and page keyword, then use the provided registry curl command to confirm studio.pzero/mcp is active/latest.