Added a scrollable, cancelable production grid

I changed production jobs into a scrollable thumbnail grid. Each queued item keeps its progress and current status beside its icon, making a busy producer easier to inspect.

Clicking a queued item cancels that exact job and returns its cost. Scrolling keeps later jobs accessible without hiding the producer's other controls.

“Job thumbnails show progress and status, and clicking one cancels that exact job.”

The clips initialize twelve jobs on a native producer, cancel one specific job and inspect the lower jobs through the actual scrollable panel. The producer is deliberately offline for this interface demonstration; this is not footage of all twelve jobs completing.