fix: Simplify timestamp parsing by removing timezone and format configuration

log-alert/config.json

@@ -110,9 +110,7 @@
                 {
                     "type": "timestamp",
                     "config": {
-                        "source-field": "timestamp",
-                        "timezone": "Europe/Paris",
-                        "timestamp-format": "%Y-%m-%dT%H:%M:%S.%f"
+                        "source-field": "timestamp"
                     }
                 },
                 {

log-alert/filters/timestamp.py

@@ -34,7 +34,7 @@ class TimestampFilter(Filter):
                         parsed_time = parsed_time.replace(year=datetime.datetime.now().year)
                     timestamp_value = int(parsed_time.replace(tzinfo=ZoneInfo(self.timezone)).timestamp())
                 else:
-                    timestamp_value = int(timestamp_string)
+                    timestamp_value = int(datetime.datetime.fromisoformat(timestamp_string).timestamp())
             except Exception as e:
                 logger.error(f"Error parsing timestamp {timestamp_value} with format {self.timestamp_format}: {e}")