fix the issues in the app.py

app.py

@@ -1160,13 +1160,14 @@ def list_documents(tenant_id: str, role: str, limit: int = 1000, offset: int = 0
                 type_counts[doc_type] += 1
                 total_length += len(text)
                 
-                formatted_docs.append({
-                    "ID": doc_id,
-                    "Type": doc_type,
-                    "Preview": preview,
-                    "Length": len(text),
-                    "Created": created_at[:10] if created_at else "N/A"
-                })
+                # Format as list for Gradio Dataframe (list of lists)
+                formatted_docs.append([
+                    doc_id,
+                    doc_type,
+                    preview,
+                    len(text),
+                    created_at[:10] if created_at else "N/A"
+                ])
             
             # Create statistics dictionary
             stats = {
@@ -2159,8 +2160,9 @@ with gr.Blocks(
                 status, docs, total, stats, chart_fig = list_documents(tenant_id, role)
                 
                 # Filter documents by type if not "all"
+                # docs is now a list of lists: [ID, Type, Preview, Length, Created]
                 if filter_type != "all" and docs:
-                    filtered_docs = [doc for doc in docs if doc.get("Type", "").lower() == filter_type.lower()]
+                    filtered_docs = [doc for doc in docs if len(doc) > 1 and doc[1].lower() == filter_type.lower()]
                     docs = filtered_docs
                     status = f"✅ Found {len(docs)} {filter_type} document(s) (out of {total} total)"