Function prependPathRefs

src/bridge/inboundAttachments.ts:143–162

(
  content: string | Array<ContentBlockParam>,
  prefix: string,
)

 * block[0] means they're silently ignored for [text, image] content.
 */
export function prependPathRefs(
  content: string | Array<ContentBlockParam>,
  prefix: string,
): string | Array<ContentBlockParam> {
  if (!prefix) return content
  if (typeof content === 'string') return prefix + content
  const i = content.findLastIndex(b => b.type === 'text')
  if (i !== -1) {
    const b = content[i]!
    if (b.type === 'text') {
      return [
        ...content.slice(0, i),
        { ...b, text: prefix + b.text },
        ...content.slice(i + 1),
      ]
    }
  }
  // No text block — append one at the end so it's last.
  return [...content, { type: 'text', text: prefix.trimEnd() }]
}

/**
 * Convenience: extract + resolve + prepend. No-op when the message has no