style: ruff import fixes

meshcore_bot.py

@@ -119,7 +119,11 @@ def main():
     try:
         from modules.config_validation import (
             SEVERITY_ERROR as _SEV_ERR,
+        )
+        from modules.config_validation import (
             SEVERITY_WARNING as _SEV_WARN,
+        )
+        from modules.config_validation import (
             validate_config as _startup_validate,
         )
         _issues = [

tests/test_settings_ui.py

@@ -8,7 +8,6 @@ modules/settings_store.py (INI backend), and the /api/plugins endpoints.
 from __future__ import annotations
 
 import configparser
-import json
 from pathlib import Path
 from unittest.mock import patch
 
@@ -23,7 +22,6 @@ from modules.settings_schema import (
 )
 from modules.settings_store import ConfigIniStore, get_settings_store
 
-
 # ---------------------------------------------------------------------------
 # ini_writer
 # ---------------------------------------------------------------------------