Summary

Add a Meilisearch sink connector that consumes Iggy messages and indexes them into a Meilisearch index through the official Rust SDK.

Motivation

Users should be able to route Iggy stream data into Meilisearch for full-text search and retrieval without writing a custom connector.

Scope

• Add the sink connector crate and sample runtime config.
• Document sink configuration and payload behavior.
• Add Docker-backed integration coverage for indexing JSON messages.