v1.2.0

What’s new in 1.2.0

• Improved pattern + frame detection (prefix / numeric section / suffix) for more reliable auto-inference across all filename styles.
• Added --width and --height for optional resizing (square when only one value is provided).
• Added explicit end-frame control with --end now correctly limiting processed frames via -frames:v.
• Upgraded stats output with clearer frame counts, durations, and file sizes.
• HTML snippet refined with cleaner markup, better Safari/HEVC switching, and more consistent autoplay handling.
• More robust FFmpeg/HEVC capability checks with clearer skip messaging.

A focused quality-of-life update improving inference, controls, and output consistency.