feat: add cuba-memorys to Community Servers

[LeandroPG19]

Cuba-Memorys

Persistent memory for AI agents with 12 Cuban-named tools.

Key Features:

• Knowledge graph with entities, observations, and typed relations
• Hebbian learning (Oja's rule) for memory strengthening
• 4-signal RRF fusion search (TF-IDF + full-text + trigrams + optional pgvector)
• GraphRAG enrichment with degree-1 neighbors
• FSRS spaced repetition for adaptive memory decay
• Anti-hallucination grounding with graduated confidence scoring
• REM Sleep autonomous background consolidation
• Graph analytics: PageRank, Louvain communities, betweenness centrality

Built on: PostgreSQL, auto-provisions via Docker.

GitHub: https://github.com/lENADRO1910/cuba-memorys
PyPI: cuba-memorys
Category: Community Server / Knowledge & Memory

[olaservo]

Thanks for contributing to the MCP servers repo!

We've retired the third-party server list from the README in favor of the MCP Registry — see #3950 for context. The Official Integrations and Community Servers sections no longer exist in the README, so this PR no longer has a target.

Going forward, please publish your server to the MCP Registry using the quickstart guide:
https://github.com/modelcontextprotocol/registry/blob/main/docs/modelcontextprotocol-io/quickstart.mdx

That's where server discovery now happens. Thanks for building on MCP!

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Note: I'm working through the backlog with help from Claude Code to give everyone a prompt response.