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Narasimha-sc
cf6a60882f
* android, desktop: skip media with no decodable preview to fix IndexOutOfBounds on send processPickedMedia appended to MediaPreview.content unconditionally for videos (and size-ok animated images) but only appended to images when a preview bitmap existed. getBitmapFromVideo returns a null preview for undecodable/corrupted videos without throwing, desyncing the two lists; sendMessageAsync then indexes images[index] past its end and crashes. Pair both appends behind a non-null bitmap so the lists stay equal-length and index-aligned, and skip only the bad item so the rest of the picked batch still sends. A video skipped this way shows showVideoDecodingException(), guarded by hasAlertsShown() so it neither stacks across multiple bad items nor duplicates the alert already shown on getBitmapFromVideo's exception path. Image decode failures are already surfaced earlier by getBitmapFromUri. * docs: add plan justifying media preview alignment fix