fix(cookbook): diagnose sglang native deps (#4112)

tests/test_cookbook_diagnosis_js.py

@@ -10,3 +10,13 @@ def test_repair_kernels_pip_spec_is_shell_quoted():
 
     assert '"kernels<0.15"' in source
     assert " --break-system-packages kernels<0.15" not in source
+
+
+def test_sglang_native_dependency_diagnosis_is_exposed_to_browser():
+    source = DIAGNOSIS_JS.read_text(encoding="utf-8")
+
+    assert r"Python\.h" in source
+    assert r"libnuma\.so\.1" in source
+    assert "SGLang native dependencies" in source
+    assert "libnuma-dev python3.12-dev build-essential" in source
+    assert "sglang-kernel" in source