fix(backup): log missing db config instead of raising

- Use module logger in backup/db.py
- Skip db dump when no databases.csv entry is present
- Apply black/formatting cleanup across backup/restore/tests

https://chatgpt.com/share/69519d45-b0dc-800f-acb6-6fb8504e9b46

src/baudolo/seed/__main__.py

@@ -2,21 +2,24 @@ import pandas as pd
 import argparse
 import os
 
+
 def check_and_add_entry(file_path, instance, database, username, password):
     # Check if the file exists and is not empty
     if os.path.exists(file_path) and os.path.getsize(file_path) > 0:
         # Read the existing CSV file with header
-        df = pd.read_csv(file_path, sep=';')
+        df = pd.read_csv(file_path, sep=";")
     else:
         # Create a new DataFrame with columns if file does not exist
-        df = pd.DataFrame(columns=['instance', 'database', 'username', 'password'])
+        df = pd.DataFrame(columns=["instance", "database", "username", "password"])
 
     # Check if the entry exists and remove it
     mask = (
-        (df['instance'] == instance) &
-        ((df['database'] == database) |
-        (((df['database'].isna()) | (df['database'] == '')) & (database == ''))) &
-        (df['username'] == username)
+        (df["instance"] == instance)
+        & (
+            (df["database"] == database)
+            | (((df["database"].isna()) | (df["database"] == "")) & (database == ""))
+        )
+        & (df["username"] == username)
     )
 
     if not df[mask].empty:
@@ -26,25 +29,40 @@ def check_and_add_entry(file_path, instance, database, username, password):
         print("Adding new entry.")
 
     # Create a new DataFrame for the new entry
-    new_entry = pd.DataFrame([{'instance': instance, 'database': database, 'username': username, 'password': password}])
+    new_entry = pd.DataFrame(
+        [
+            {
+                "instance": instance,
+                "database": database,
+                "username": username,
+                "password": password,
+            }
+        ]
+    )
 
     # Add (or replace) the entry using concat
     df = pd.concat([df, new_entry], ignore_index=True)
 
     # Save the updated CSV file
-    df.to_csv(file_path, sep=';', index=False)
+    df.to_csv(file_path, sep=";", index=False)
+
 
 def main():
-    parser = argparse.ArgumentParser(description="Check and replace (or add) a database entry in a CSV file.")
+    parser = argparse.ArgumentParser(
+        description="Check and replace (or add) a database entry in a CSV file."
+    )
     parser.add_argument("file_path", help="Path to the CSV file")
     parser.add_argument("instance", help="Database instance")
     parser.add_argument("database", help="Database name")
     parser.add_argument("username", help="Username")
-    parser.add_argument("password", nargs='?', default="", help="Password (optional)")
+    parser.add_argument("password", nargs="?", default="", help="Password (optional)")
 
     args = parser.parse_args()
 
-    check_and_add_entry(args.file_path, args.instance, args.database, args.username, args.password)
+    check_and_add_entry(
+        args.file_path, args.instance, args.database, args.username, args.password
+    )
+
 
 if __name__ == "__main__":
     main()