Karakeep MCP server

# Architecture  - Webapp: NextJS based using sqlite for data storage. - Workers: Consume the jobs from sqlite based job queue and executes them, there are three job types: 1. Crawling: Fetches the content of links using a headless chrome browser running in the workers container. 2. OpenAI: Uses OpenAI APIs to infer the tags of the content. 3. Indexing: Indexes the content in meilisearch for faster retrieval during search.