[WIP] Add new event for December 15 at PoW.Space, Lugano

[Copilot]

Plan: Add Event for December 15th at PoW.Space Lugano

• Create an events data structure to store community events
• Add the December 15th event at PoW.Space in Lugano with topics:
  • ECDSA signature validation performance comparison (OpenSSL vs libsecp256k1)
  • Lightning Network BOLT updates (PR #1295)
  • Arkade p2p trading with ZKP
  • LND v0.20 release
• Document the events structure in README or separate documentation
• Validate the event data structure and format
• Run linting and formatting checks

Original prompt

Open PR to add a new event for 15th of December at PoW.Space in lugano.

Topic: https://x.com/LayerTwoLabs/status/1982869833667752336

Vincent, [Nov 3, 2025 at 9:50:14 AM]:
Topic: https://delvingbitcoin.org/t/comparing-the-performance-of-ecdsa-signature-validation-in-openssl-vs-libsecp256k1-over-the-last-decade/2087

Vincent, [Nov 4, 2025 at 9:44:04 AM]:
Topic: lightning/bolts#1295

Arkade p2p trading with ZKP
https://x.com/gringokiwi/status/1997822205170946128?s=20

LND v0.20 is out
https://x.com/lightning/status/1996287235633647976?s=20

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