Add Ball Ranks MCP server

[Ollynov]

Summary

• add the hosted Ball Ranks MCP server with a one-command anonymous Model Zero connection
• include the canonical source repository, supported sports, per-IP anonymous limit, and API-key setup link

Verification

• npm run validate: 204 entries passed
• Cline CLI 3.0.70 accepted the exact submitted install arguments with --yes --json: installed, HTTP transport, no warnings
• production icon returned HTTP 200 and image/svg+xml
• direct MCP initialize and tools/list succeeded with four read-only tools; the Cline host answer still needs provider authentication
• all five data review cases returned registration_required because the test IP's anonymous quota was exhausted; successful rankings retrieval is still pending

Example prompts: “Show Ball Ranks Model Zero's top 10 football season rankings for PPR” and “Show Ball Ranks Model Zero's top five basketball season rankings.” Return the season/model and the tool's sourceUrl with each answer.