fix: harden workflow config rpc target routing

tests/wf_transport_rpc_http/test_cli.py

@@ -42,3 +42,60 @@ def test_rpc_server_cli_accepts_config_file(tmp_path) -> None:
 
     assert result.exit_code == 0
     assert "--config" in result.output
+
+
+def test_rpc_server_cli_uses_configured_store_and_transport(
+    monkeypatch, tmp_path
+) -> None:
+    config_path = tmp_path / "wf.json"
+    config_path.write_text(
+        json.dumps(
+            {
+                "version": 1,
+                "server": {
+                    "store": {"kind": "filesystem", "root": ".wf_store"},
+                    "transports": [
+                        {
+                            "kind": "rpc_http",
+                            "host": "127.0.0.2",
+                            "port": 9999,
+                            "path": "/workflow-rpc",
+                        }
+                    ],
+                },
+            }
+        ),
+        encoding="utf-8",
+    )
+    captured: dict[str, object] = {}
+
+    def fake_build_server(root):
+        captured["store_root"] = root
+        return object()
+
+    def fake_create_rpc_app(server, *, rpc_path="/rpc"):
+        captured["server"] = server
+        captured["rpc_path"] = rpc_path
+        return object()
+
+    def fake_uvicorn_run(app_obj, *, host, port, access_log):
+        captured["app"] = app_obj
+        captured["host"] = host
+        captured["port"] = port
+        captured["access_log"] = access_log
+
+    monkeypatch.setattr(
+        "wf_transport_rpc_http.cli.build_local_static_workflow_server",
+        fake_build_server,
+    )
+    monkeypatch.setattr("wf_transport_rpc_http.cli.create_rpc_app", fake_create_rpc_app)
+    monkeypatch.setattr("wf_transport_rpc_http.cli.uvicorn.run", fake_uvicorn_run)
+
+    result = CliRunner().invoke(app, ["--config", str(config_path)])
+
+    assert result.exit_code == 0, result.output
+    assert captured["store_root"] == (tmp_path / ".wf_store").resolve()
+    assert captured["rpc_path"] == "/workflow-rpc"
+    assert captured["host"] == "127.0.0.2"
+    assert captured["port"] == 9999
+    assert captured["access_log"] is False