add data viewer

app/supabase_db.py

@@ -199,16 +199,16 @@ class SupabaseClient:
             
             all_chunks = []
             page_size = 1000
-            from_index = 0
+            start = 0
             
             while True:
-                # Thử với .from_() và .to()
-                response = self.client.table('document_chunks').select('*').from_(from_index).to(from_index + page_size - 1).execute()
+                # Sử dụng .range() với syntax đúng
+                response = self.client.table('document_chunks').select('*').range(start, start + page_size - 1).execute()
                 
-                logger.info(f"[SUPABASE] Fetched page: from={from_index}, to={from_index + page_size - 1}, count={len(response.data) if response.data else 0}")
+                logger.info(f"[SUPABASE] Fetched page: start={start}, end={start + page_size - 1}, count={len(response.data) if response.data else 0}")
                 
                 if not response.data:
-                    logger.info(f"[SUPABASE] No more data at from_index {from_index}")
+                    logger.info(f"[SUPABASE] No more data at start {start}")
                     break
                 
                 all_chunks.extend(response.data)
@@ -218,7 +218,7 @@ class SupabaseClient:
                     logger.info(f"[SUPABASE] Last page with {len(response.data)} records")
                     break
                 
-                from_index += page_size
+                start += page_size
             
             logger.info(f"[SUPABASE] Successfully fetched {len(all_chunks)} document chunks (expected: {total_count})")
             return all_chunks