This tag marks the state of the codebase before exploring migration from
OpenSearch Serverless (AOSS) to Amazon DocumentDB. The current implementation
uses AOSS with eventual consistency handling and query-first patterns.

Tagged on: 2025-12-31
Branch: test/pr-273-opensearch-abstraction
Commit: 5a26506d770dae7cf50ba31e9b457b68cb542a89