Inline Gradient Chips in HarmonyOS: CustomSpan, Text Wrapper, and ImageSpan Approaches

In HarmonyOS, applying linearGradient directly to a Span is not supported because Span lacks universal attributes. Three workarounds are presented: (A) CustomSpan with drawing APIs to render a gradient rounded-rect background and foreground text, (B) wrapping the chip segment in a separate Text component that supports linearGradient, and (C) rendering the gradient and text onto a PixelMap and embedding it inline via ImageSpan/ImageAttachment.