add funcs docs

src/utils/connect/file_management.py

@@ -10,11 +10,16 @@ from utils.csv.parser import extract_value
 logger = logging.getLogger(__name__)
 
 def on_file_received(self: object, file: str) -> None:
-    """Handles the event when a file is successfully received.
+    """
+    Processes a received file, extracts relevant information, and inserts it into the database.
+
+    If the file is empty, it is removed. Otherwise, it extracts unit and tool
+    information from the filename and the first few lines of the CSV, handles
+    aliases, and then inserts the data into the configured database table.
 
     Args:
-        file: The path to the received file.
-    """
+        file (str): The path to the received file."""
+
     if not os.stat(file).st_size:
         os.remove(file)
         logger.info(f'File {file} is empty: removed.')