Fix provider models per workspace (#1167)

* Scope provider snapshots by workspace

* Fix provider snapshot cwd test on Windows

packages/app/src/components/import-session-sheet.tsx

@@ -393,6 +393,7 @@ export function ImportSessionSheet({
   const queryClient = useQueryClient();
 
   const { entries: snapshotEntries, supportsSnapshot } = useProvidersSnapshot(serverId, {
+    cwd,
     enabled: visible,
   });