apps/server/src/filesystemCheckpointStore.test.ts | 132 +++++++++++++++++++++
 apps/server/src/filesystemCheckpointStore.ts      | 202 ++++++++++++++++++++++++++++++++
 apps/server/src/providerManager.test.ts           | 121 ++++++++++++++++++-
 apps/server/src/providerManager.ts                | 180 ++++++++++++++++++++++++----
 4 files changed, 609 insertions(+), 26 deletions(-)