Update database file path resolution to use Path for improved portability

main.py

@@ -165,7 +165,7 @@ def search(
     client = OpenAI(api_key=os.environ.get("OPENAI_API_KEY"))
 
     # Load database
-    database_file = "/[openai_embedded] The Alchemy of Happiness (Ghazzālī, Claud Field) (Z-Library).parquet"
+    database_file = Path(__file__).parent / "[openai_embedded] The Alchemy of Happiness (Ghazzālī, Claud Field) (Z-Library).parquet"
     df = load_data(database_file)
     logging.info("Database loaded successfully")