config reads os.environ 'PORT' / 'DEBUG' and crashes when unset; add defaults and a tolerant boolean parse.

config reads os.environ 'PORT' / 'DEBUG' and crashes when unset; add defaults and a tolerant boolean parse.: a task in agent-harbor-tasks (Harbor dataset). PORT should default to 8000 and DEBUG to off when they're not set. While you're there, DEBUG should count as on for 1 , true or yes in any…