migrate rife_interp to native urllib.request to fix Gradio thread deadlock

remove legacy pggigi dataset uploads, 100% use instant persistent storage /data

integrate instant persistent storage auto-save to /data (dayona/I2V-STUDIO-storage)

add real-time Gradio progress bar percentages and descriptions during VIP RIFE phase

align RIFE client with updated NVENC streaming API contract

bind prompt relay duration to main generator duration slider and increase RIFE timeout to 120s

add 2-stage chaining mode for CPU motion extension + VIP remote GPU RIFE

remove share=True tunnel to stabilize HF Space container

add Gradio LoginButton for direct domain ZeroGPU OAuth authentication

enforce