CVE-2026-70378: Improper Validation of Specified Quantity in Input

imagecli's pipeline operation Carve::apply in src/imageops.rs only asserts , never validating that the ratio is positive. A negative ratio e.g. -5 causes the computed target width to saturate to 0 via Rust's defined float-to-uint cast, which is then passed to imageproc::seamcarving::shrinkwidth —...