Laravel 13's Image facade wraps Intervention Image v4 internally, so
switching our upload width probe and resize job/command to it required
bumping intervention/image ^3 -> ^4 (and its intervention/gif ^5
dependency). Removes our own ImageManager container binding and
config/image.php in favour of Laravel's built-in driver resolution.
Also fixes a latent filename mismatch in ProcessMediaJobTest that Pint's
stricter typing on the new Image API turned into a hard TypeError, and
tidies config/flare.php to use imported class names instead of FQCNs.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018Sorsgn85nw7uQyRMNvzyD
