[Bugfix] Update log_level parsing to use parse_level from #27

[zhaozuy]

Currently StandardSupervisor class method _setup_logger has the same issue fixed by #26 #27 where it cannot handle case where log level env variable is specified as an int (read as string).

We want to update this so it can handle this case as well as silently fallback to a specific level (e.g. ERROR) if parse fails.

model-hosting-container-standards/python/model_hosting_container_standards/supervisor/scripts/standard_supervisor.py

Lines 116 to 119 in 3a14116

	def _setup_logging(self) -> None:
	"""Configure logging based on environment."""
	log_level = os.getenv("LOG_LEVEL", "INFO").upper()
	self.logger.setLevel(getattr(logging, log_level, logging.INFO))

See parse_level:

model-hosting-container-standards/python/model_hosting_container_standards/logging_config.py

Lines 9 to 25 in 3a14116

	def parse_level(level: str) -> Union[int, str]:
	"""Parse a log level string into a valid logging level.
	Args:
	level: Log level string to parse.
	Returns:
	Valid logging level.
	"""
	# Convert level to uppercase
	level = level.upper()
	# Convert numeric log level string to int so `setLevel` can recognize it
	try:
	return int(level)
	except ValueError:
	return level