Badge items like HC_Badge, BADGE_SHREK_03 have item_names that don't start
with 'badge_' and interaction_type='default'. Now loads known badge codes
from <gamedataRoot>/album1584/*.gif files and uses that set to exclude
badge items from .nitro and icon audit checks. Also removes incorrect
startsWith('badge_') check that would wrongly skip badge display cases
which DO have .nitro files.