Add application file

app.py

@@ -265,7 +265,7 @@ def execute_sql(sql: str) -> dict:
     # Save results to file with timestamp
     timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
     filename = OUTPUT_DIR / f"sql_result_{timestamp}.json"
-    
+
     output_data = {
         "timestamp": datetime.now().isoformat(),
         "sql_query": sql,
@@ -273,14 +273,14 @@ def execute_sql(sql: str) -> dict:
         "row_count": result.get("row_count", 0),
         "execution_status": "success" if result.get("success") else "failed"
     }
-    
+
     try:
         with open(filename, "w", encoding="utf-8") as f:
             json.dump(output_data, f, ensure_ascii=False, indent=2)
         print(f"✓ Results saved to: {filename}")
     except Exception as e:
         print(f"⚠️  Failed to save results to file: {str(e)}")
-    
+
     return result
 
 
@@ -291,10 +291,10 @@ def generate_reply(user_message: str, products: list, conversation_history: list
 
     # Build messages: system + history + current turn
     messages = [{"role": "system", "content": RESPONSE_SYSTEM_PROMPT}]
-    
+
     # Add conversation history
     messages.extend(conversation_history)
-    
+
     # Add current user query
     messages.append({
         "role": "user",
@@ -391,7 +391,7 @@ async def get_result(filename: str):
     filepath = OUTPUT_DIR / filename
     if not filepath.exists() or not filepath.suffix == ".json":
         raise HTTPException(status_code=404, detail="Result file not found")
-    
+
     try:
         return FileResponse(filepath, media_type="application/json", filename=filename)
     except Exception as e: