Image alt text audit

A design system ships a component gallery, and the accessibility check runs over the images it renders. Each image arrives as one string: the source path, a vertical bar, then the alt text, and the first bar is the separator. Report an image as missing when its alt text is empty or only whitespace. Otherwise report it as redundant when the alt text says nothing more than the file name. To compare, take the last path segment, drop the final dot and everything after it to get the bare name, then flatten the alt text and the name alike: lowercase them, turn every hyphen and underscore into a space, and squeeze runs of whitespace to one space. A flattened alt equal to either the bare name or the whole segment including its extension is redundant. Clean images report nothing. Return one finding per faulty image, written as the source path, a bar, then missing or redundant, in input order.