Taming Compose Multiplatform Image Decoding on iOS

Deep dive into how Compose Multiplatform's Skia-based image decoding on iOS bypasses platform-native caching (NSCache, ImageIO progressive decoding), leading to unbounded memory growth in image-heavy lists. Covers building a custom ImageLoader that bridges Skia bitmaps to platform-managed textures, leveraging iOS memory pressure notifications via expect/actual, and implementing a two-tier LRU cache (decoded bitmap + encoded data) that respects both Kotlin/Native's new GC and ARC lifecycle. Includes Instruments allocation traces showing the before/after.