Update requirements.txt

requirements.txt

@@ -1,8 +1,13 @@
+# === Core LangChain ===
 langchain==0.2.14
 langchain-huggingface==0.0.3
 langchain-google-genai==1.0.4
 langchain-chroma==0.1.1
 chromadb==0.5.3
-gradio==4.44.1
-spaces==0.25.1
-google-generativeai==0.8.3
+
+# === Google Generative AI SDK ===
+google-generativeai==0.8.3
+
+# === Gradio minimal for Spaces ===
+gradio==4.42.0
+spaces==0.22.1