@mytec: refactor to ray ready for testing

backend/app/api/routes/system.py

@@ -6,9 +6,22 @@ router = APIRouter()
 
 @router.get("/info")
 async def get_system_info():
-    """Return system info: CPU cores, GPU availability, parallel support."""
+    """Return system info: CPU cores, GPU availability, parallel backend."""
     cpu_cores = mp.cpu_count() or 1
 
+    # Check Ray
+    ray_available = False
+    ray_initialized = False
+    try:
+        from app.services.parallel_coverage_service import RAY_AVAILABLE
+        ray_available = RAY_AVAILABLE
+        if ray_available:
+            import ray
+            ray_initialized = ray.is_initialized()
+    except Exception:
+        pass
+
+    # Check GPU
     gpu_info = None
     try:
         import cupy as cp
@@ -24,7 +37,9 @@ async def get_system_info():
     return {
         "cpu_cores": cpu_cores,
         "parallel_workers": min(cpu_cores, 14),
-        "parallel_enabled": True,
+        "parallel_backend": "ray" if ray_available else "sequential",
+        "ray_available": ray_available,
+        "ray_initialized": ray_initialized,
         "gpu": gpu_info,
         "gpu_enabled": gpu_info is not None,
     }