Update app.py

app.py

@@ -42,7 +42,7 @@ def extract_text_from_pdf(pdf_path):
 
 def summarize_text_with_chat(text, max_length=10000):
     """OpenAIのChat APIを使ってテキストを要約。"""
-    openai.api_key = os.getenv('OPENAI_API_KEY')
+    openai.api_key = os.getenv('OPEN_AI_API_KEYS')
     trimmed_text = text[:max_length]
     response = openai.chat.completions.create(
         model="gpt-3.5-turbo-0125",