apps/server/src/orchestration/Layers/CheckpointReactor.test.ts | 162 +++++++++++++++++
 apps/server/src/orchestration/Layers/CheckpointReactor.ts      | 107 ++---------
 apps/server/src/orchestration/Layers/ProjectionPipeline.ts     |   5 +-
 apps/server/src/orchestration/projector.test.ts                | 305 ++++++++++++++++++++++----------
 apps/server/src/orchestration/projector.ts                     |   8 +-
 packages/client-runtime/src/state/threadReducer.test.ts        |  73 +++++---
 packages/client-runtime/src/state/threadReducer.ts             |   5 +-
 7 files changed, 453 insertions(+), 212 deletions(-)