fix issue about name for csv refactoring to use only one file and one directory

src/lib/helpers/recipe_manager.py

@@ -482,20 +482,38 @@ def export_recipes(config, csv_path=None, logger=None):
 
 def backup_current_recipes(config, logger=None):
     """
-    Back up current recipes to a timestamped CSV file in the predefined backup directory.
+    Back up current recipes to a CSV file in a single common folder. The file name equals the
+    [machine]/description from the active machine config (sanitized). Saving overwrites any
+    previous backup with the same machine description.
     """
-    # Get the machine's hostname to use for the directory name
-    machine_name = socket.gethostname()
-    # Define the backup directory and file name
-    backup_dir = os.path.join('config', 'csv_import', 'backup_csv', machine_name)
-    timestamp = datetime.now().strftime("%d%m%y%H%M%S")
-    backup_file = f"backup_{timestamp}.csv"
-    backup_path = os.path.join(backup_dir, backup_file)
+    # Get machine description from config; fall back to hostname if missing
+    machine_desc = None
+    try:
+        machine_desc = (config.get("machine", {}) or {}).get("description")
+    except Exception:
+        machine_desc = None
+    if not machine_desc:
+        machine_desc = socket.gethostname()
+
+    # Sanitize description to be safe as a file name
+    safe_name = str(machine_desc).strip()
+    # Replace path separators and common forbidden characters on Windows/Unix
+    for ch in ['\\', '/', ':', '*', '?', '"', '<', '>', '|']:
+        safe_name = safe_name.replace(ch, '_')
+    # Also collapse consecutive spaces
+    safe_name = ' '.join(safe_name.split())
+    # Ensure .csv extension
+    if not safe_name.lower().endswith('.csv'):
+        safe_name = f"{safe_name}.csv"
+
+    # Define the single backup directory and file path
+    backup_dir = os.path.join('config', 'csv_import', 'backup_csv')
+    backup_path = os.path.join(backup_dir, safe_name)
 
     # Ensure the backup directory exists
     os.makedirs(backup_dir, exist_ok=True)
 
-    # Export current recipes to the backup path
+    # Export current recipes to the backup path (export_recipes overwrites the file)
     export_recipes(config=config, csv_path=backup_path, logger=logger)
 
     if logger: