Depend on unstructured[xlsx] so spreadsheet ingest has required deps.

Bare unstructured omits networkx/msoffcrypto/xlrd; xlsx partition then
crashes reindex. The [xlsx] extra is the supported install path.

Co-authored-by: Cursor <cursoragent@cursor.com>

pyproject.toml

@@ -31,7 +31,9 @@ dependencies = [
     # Supported: langgraph>=1.2.5,<1.3 (matches langchain 1.3.x).
     "langgraph>=1.2.5,<1.3.0",
     "chromadb==1.3.5",
-    "unstructured==0.18.21",
+    # Fallback loader uses UnstructuredFileLoader; xlsx partition needs the
+    # [xlsx] extra (networkx, msoffcrypto-tool, xlrd, openpyxl, pandas).
+    "unstructured[xlsx]==0.18.21",
     "pypdf==6.4.0",
     "python-docx==1.2.0",
     "docx2txt==0.8",
@@ -47,7 +49,6 @@ dependencies = [
     "python-dateutil==2.9.0.post0",
     "pytz==2025.2",
     "stripe>=12.0.0,<14.0.0",
-    "networkx>=3.0,<4",
 ]
 
 [dependency-groups]