Share-link integers and Cesium radians were converted before normalizeBox
checked them, so a blank edge still became 0°. Edges are now accepted only as
numbers or non-blank numeric strings, which also refuses [] and {}. Tests cover
all four edges through validateBox, dequantizeBox, boxFromRectangle and
searchHls.
Select a box on the world and browse the last 30 days of open satellite imagery over it, keyless: NASA GIBS Harmonized Landsat Sentinel-2 (30 m) and the VIIRS daily overview (250 m), with a day strip, IMAGE / VS BASEMAP / A / B modes with a swipe divider, PNG export and share links. The before/after swipe from the Nepal scene moves into shared modules so both use it.
Co-authored-by: manjunath22466 <[email protected]>