Fix projection snapshot import after rebase

Co-authored-by: codex <codex@users.noreply.github.com>

Author: juliusmarminge

apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.ts

@@ -17,7 +17,6 @@ import {
   type OrchestrationProject,
   type OrchestrationSession,
   type OrchestrationThread,
-  type OrchestrationThreadActivity,
   ModelSelection,
 } from "@t3tools/contracts";
 import { Effect, Layer, Schema, Struct } from "effect";