fix deps of huggingface_hub

Signed-off-by: Jack Luar <[email protected]>

Author: luarss

backend/pyproject.toml

@@ -11,7 +11,7 @@ dependencies = [
     "fastmcp>=2.12.2",
     "google-cloud-storage>=2.19.0",
     "httpx>=0.28.1",
-    "huggingface-hub>=1.0.0",
+    "huggingface-hub>=0.23.0,<1.0",
     "langchain>=0.3.27",
     "langchain-community>=0.3.27",
     "langchain-google-genai>=2.1.9",
@@ -30,6 +30,7 @@ dependencies = [
     "pypdf>=6.0.0",
     "rank-bm25>=0.2.2",
     "rich>=13.7.0",
+    "sentence-transformers>=5.1.2",
     "sphinx>=8.1.3",
     "sphinx-autobuild>=2024.10.3",
     "sphinx-book-theme>=1.1.4",