style(ppt): align PPT palette perfectly with MOMO Pro v2 design tokens (Beige, Warm Ink, Caramel Orange) as per frontend upgrade roadmap

tests/test_path_traversal.py

@@ -91,12 +91,9 @@ def test_safe_join():
     print(f"❌ 失敗: {failed}")
     print(f"總計: {passed + failed}")
 
-    if failed == 0:
-        print("\n🎉 所有路徑遍歷防護測試通過！")
-        return 0
-    else:
-        print(f"\n⚠️ 有 {failed} 個測試失敗，請檢查！")
-        return 1
+    assert failed == 0
+
+    print("\n🎉 所有路徑遍歷防護測試通過！")
 
 if __name__ == "__main__":
     sys.exit(test_safe_join())