Update app.py

app.py

@@ -35,7 +35,7 @@ POSTGRES_DB = os.getenv('POSTGRES_DB')
 GOOGLE_API_KEY = os.getenv('GOOGLE_API_KEY')
 
 COLLECTION_NAME = "homepage_pdfplumner_1st"
-SENTENCE_TRANSFORMERS_HOME = os.getenv('SENTENCE_TRANSFORMERS_HOME')
+SENTENCE_TRANSFORMERS_HOME = os.getenv('SENTENCE_TRANSFORMERS_HOME', '/app/.cache')
 
 # 2. 필수 환경 변수가 모두 존재하는지 확인합니다.
 if not all([POSTGRES_USER, POSTGRES_PASSWORD, POSTGRES_HOST, POSTGRES_PORT, POSTGRES_DB, GOOGLE_API_KEY, SENTENCE_TRANSFORMERS_HOME]):