Revert logging level to INFO and remove debug code

src/display_controller.py

@@ -9,7 +9,7 @@ from src.stock_manager import StockManager
 from src.stock_news_manager import StockNewsManager
 
 # Configure logging
-logging.basicConfig(level=logging.DEBUG, force=True)
+logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger(__name__)
 
 class DisplayController:

src/stock_manager.py

@@ -58,15 +58,9 @@ class StockManager:
                  # Directory exists, check if writable by trying to create a temp file
                 try:
                     temp_file_path = os.path.join(self.logo_dir, "write_test_py.tmp")
-                    abs_path = os.path.abspath(temp_file_path)
-                    cwd = os.getcwd()
-                    euid = os.geteuid()
-                    egid = os.getegid()
-                    logger.debug(f"Write test: UID={euid}, GID={egid}, CWD='{cwd}', Path='{abs_path}'")
                     with open(temp_file_path, 'w') as f:
                         f.write('test')
                     os.remove(temp_file_path)
-                    logger.debug(f"Write test successful in {self.logo_dir}")
                     writable = True
                 except (PermissionError, OSError) as e:
                     logger.warning(f"Cannot write to logo directory '{self.logo_dir}' (write test failed): {e}. Using temporary directory.")