feat(coprocessor): limit GPU CI tests to FHEUint64 type matrix

Author: PanGan21

.github/workflows/coprocessor-gpu-tests.yml

@@ -215,8 +215,15 @@ jobs:
           echo "Database migration completed"
 
       - name: Run GPU tests for the worker services.
+        env:
+          IS_MERGE_QUEUE: ${{ startsWith(github.head_ref, 'mergify/merge-queue/') && '1' || '0' }}
         run: |
           export DATABASE_URL=postgresql://postgres:postgres@localhost:5432/coprocessor
+          # Merge queue: leave unset so supported_types() defaults to full matrix.
+          # PR CI: run only FHEUint64 for faster feedback.
+          if [ "$IS_MERGE_QUEUE" != "1" ]; then
+            export TFHE_WORKER_EVENT_TYPE_MATRIX=uint64
+          fi
           cargo test \
           -p tfhe-worker \
           -p sns-worker \

coprocessor/fhevm-engine/tfhe-worker/src/tests/operators_from_events.rs

@@ -39,9 +39,14 @@ const FULL_SUPPORTED_TYPES: &[i32] = &[
     11, // 2048 bit
 ];
 
+const UINT64_ONLY: &[i32] = &[
+    5, // 64 bit
+];
+
 pub fn supported_types() -> &'static [i32] {
     match std::env::var("TFHE_WORKER_EVENT_TYPE_MATRIX") {
         Ok(mode) if mode.eq_ignore_ascii_case("local") => LOCAL_SUPPORTED_TYPES,
+        Ok(mode) if mode.eq_ignore_ascii_case("uint64") => UINT64_ONLY,
         _ => FULL_SUPPORTED_TYPES,
     }
 }