Tighten ZeroGPU durations to measured latency

Switch to transformers 5.15.0 + gradio 6.20.0 (no hub downgrade)

Size ZeroGPU duration to measured latency (max 2.9s)

Fix Gradio 6 API: theme/css on launch(), drop show_copy_button

gradio 6.17.3 (last release allowing huggingface-hub<1.0)

Pin gradio 6.19.0 for transformers 4.56.2 hub compat

Trendyol-Vision-Flash catalog demo

initial commit