Remove the immediate stitching strategy from the catalog-backend plugin.
All stitching now uses the deferred mode exclusively, which processes
entities asynchronously via a worker queue. This simplifies the stitching
subsystem by removing dead-weight code paths and the strategy parameter
threading, and fixes a bug where deleteWithEagerPruningOfChildren
hardcoded immediate-mode semantics regardless of configured mode.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Fredrik Adelöw <freben@gmail.com>
Fredrik Adelöw