Build a settings-only sync_accounts request from the complete current config
set. Merge by subscriber_id and retain sibling subscribers and event types.
The caller owns read/modify/write serialization and must check per-account
results/readback. This pure builder neither proves endpoint control nor
implements a persistent subscription runtime.
Build a settings-only sync_accounts request from the complete current config set. Merge by subscriber_id and retain sibling subscribers and event types. The caller owns read/modify/write serialization and must check per-account results/readback. This pure builder neither proves endpoint control nor implements a persistent subscription runtime.