I don't think there's a one-size fits all tool there are many that will do most/part of what you want. Weaviate is a vector db that supports real-time data ingestion. There's Apache Kafka that is used by LinkedIn. There is also Firecrawl which is also open source and can do most of what you might want. Here's a short explainer on Firecrawl: https://www.salishseaconsulting.com/blog/firecrawl