test(smoke): add repository root to sys.path for imports

Ensure test can import modules from repository root by adding its path to sys.path before imports

Author: mukul975

tests/test_smoke.py

@@ -1,4 +1,10 @@
 import inspect
+import sys
+from pathlib import Path
+
+repository_root = Path(__file__).resolve().parents[1]
+if str(repository_root) not in sys.path:
+    sys.path.insert(0, str(repository_root))
 
 import postgres_server
 
@@ -7,4 +13,3 @@ def test_creation_tools_exist() -> None:
     assert inspect.iscoroutinefunction(postgres_server.PostgreSQL_create_schema)
     assert inspect.iscoroutinefunction(postgres_server.PostgreSQL_create_table)
     assert inspect.iscoroutinefunction(postgres_server.PostgreSQL_create_index)
-