Re-enable GetCurrentConfigTool by default as it is essential for all contexts

where changing the active project is part of the workflow

src/serena/tools/config_tools.py

@@ -71,7 +71,7 @@ class SwitchModesTool(Tool, ToolMarkerOptional):
         return result_str
 
 
-class GetCurrentConfigTool(Tool, ToolMarkerOptional):
+class GetCurrentConfigTool(Tool):
     """
     Prints the current configuration of the agent, including the active and available projects, tools, contexts, and modes.
     """