Refactor configuration handling in MeshCoreBot

- Removed custom _DuplicateAwareConfigParser in favor of standard configparser.ConfigParser.
- Simplified configuration loading process while maintaining existing functionality.

modules/core.py

@@ -43,22 +43,6 @@ from .transmission_tracker import TransmissionTracker
 from .utils import resolve_path
 
 
-class _DuplicateAwareConfigParser(configparser.ConfigParser):
-    """ConfigParser that allows duplicate options (last value wins) and logs ERROR when seen."""
-
-    def __init__(self, *args, **kwargs):
-        kwargs['strict'] = False
-        super().__init__(*args, **kwargs)
-
-    def _handle_option(self, st, line, fpname):
-        if st.optname in st.options:
-            logging.getLogger(__name__).error(
-                "Duplicate option in config file: section [%s], option '%s' (file %s, line %s). Using last value.",
-                st.sectname, st.optname, fpname, getattr(st, 'lineno', '?'),
-            )
-        st.options[st.optname] = st.optvalue
-
-
 class MeshCoreBot:
     """MeshCore Bot using official meshcore package.
     
@@ -68,7 +52,7 @@ class MeshCoreBot:
     
     def __init__(self, config_file: str = "config.ini"):
         self.config_file = config_file
-        self.config = _DuplicateAwareConfigParser()
+        self.config = configparser.ConfigParser()
         self.load_config()
         
         # Setup logging