MohamadOday/iris-gallery ? reverse-engineered prompt

Build me a modern Android gallery app called Iris Gallery that works completely offline and feels fast, private, and polished.

It should show photos and videos from the device in a clean timeline and album view, with smooth grid resizing, pinch gestures, and nice Material You styling with dynamic colors and a dark mode. I want it to open instantly, have no network features at all, and include a private app lock with PIN and fingerprint, plus a secure vault for hiding sensitive media.

Please include a simple built in photo editor for crop, rotate, flip, brightness, contrast, saturation, warmth, blur, and pixelate, along with a good video player, EXIF and location details, trash for deleted items, album management, duplicate photo cleanup, and a home screen widget. Make it feel responsive and customizable, with multiple languages if possible.

If you need anything unclear, check current Android docs online before implementing.