Fix fetch sales 2

services/training/app/services/training_service.py

@@ -410,8 +410,9 @@ class TrainingService:
         try:
             # Call data service to get sales data
             async with httpx.AsyncClient() as client:
-                params = {
-                    "tenant_id": tenant_id
+                params = {}
+                headers = {
+                    "X-Tenant-ID": tenant_id
                 }
                 
                 if hasattr(request, 'start_date') and request.start_date:
@@ -426,6 +427,7 @@ class TrainingService:
                 response = await client.get(
                     f"{settings.DATA_SERVICE_URL}/api/v1/sales/",
                     params=params,
+                    headers=headers,
                     timeout=30.0
                 )