Add strategy to ingest public assembly curation signal

[TimDaub]

• https://www.public---assembly.com/ implements a curation protocol e.g. for neosound.xyz
• here's the contract that implements the protocol https://github.com/public-assembly/curation-protocol/blob/main/src/Curator.sol
• there are different kinds of content that can be curated: https://github.com/public-assembly/curation-protocol/blob/a6d6919c5583771fd6ab1dab1f57b7299d6fc04f/src/Curator.sol#L29
• they have launched https://www.neosound.xyz/ and so we're probably interested in crawling that