refactor: share agent challenge harness

src/wf_cli/app.py

@@ -39,7 +39,7 @@ def root(
             "--config",
             help="Path to workflow/MCP config JSON.",
         ),
-    ] = "wf_mcp.config.json",
+    ] = "wf.config.json",
     local: Annotated[
         bool,
         typer.Option("--local", help="Force same-process local workflow target."),

src/wf_cli/context.py

@@ -60,7 +60,7 @@ class CliTyperState:
     root CLI options through this adapter instead of spelling dict keys locally.
     """
 
-    config_path: str = "wf_mcp.config.json"
+    config_path: str = "wf.config.json"
     force_local: bool = False
     rpc_url: str | None = None
     rpc_timeout_seconds: float | None = None