[model-gateway] change sgl-router to sgl-model-gateway (#14312)

sgl-model-gateway/bindings/python/setup.py

@@ -0,0 +1,28 @@
+import os
+import warnings
+
+from setuptools import setup
+
+with_rust = os.environ.get("SGLANG_ROUTER_BUILD_WITH_RUST", None)
+with_rust = with_rust is None or (not with_rust.lower() in ["0", "false", "no"])
+
+rust_extensions = []
+if with_rust:
+    from setuptools_rust import Binding, RustExtension
+
+    rust_extensions.append(
+        RustExtension(
+            target="sglang_router_rs",
+            path="Cargo.toml",
+            binding=Binding.PyO3,
+        )
+    )
+else:
+    warnings.warn(
+        "Building 'sglang-router' without Rust support. Performance may be degraded."
+    )
+
+setup(
+    rust_extensions=rust_extensions,
+    zip_safe=False,
+)