Make template rendering compatible across Starlette versions

routers/upload.py

@@ -13,6 +13,7 @@ from config import UPLOAD_DIR, MAX_CONCURRENT_EXTRACTIONS
 from database.connection import get_db
 from services.extractor import extract_document, get_available_providers, get_default_provider
 from services.pdf_handler import pdf_to_images
+from services.template_utils import render_template
 
 router = APIRouter()
 templates = Jinja2Templates(directory="templates")
@@ -204,10 +205,11 @@ async def upload_page(request: Request):
                SUM(CASE WHEN status='error' THEN 1 ELSE 0 END) AS errors
             FROM documents WHERE status != 'staged'"""
         ).fetchone()
-    return templates.TemplateResponse(
+    return render_template(
+        templates,
+        request,
         "index.html",
         {
-            "request": request,
             "stats": dict(stats) if stats else {},
             "providers": get_available_providers(),
             "default_provider": get_default_provider(),