feat: add copy readme to markdown button

Author: IdrisGit

app/pages/package/[[org]]/[name].vue

@@ -1152,10 +1152,9 @@ onKeyStroke(
                 <button
                   type="button"
                   @click="copyReadme()"
-                  class="px-2 py-1.5 font-mono text-xs rounded transition-colors duration-150 inline-flex items-center gap-1.5"
-                  :class="
-                    copiedReadme ? 'text-accent bg-accent/10' : 'text-fg-subtle bg-bg hover:text-fg'
-                  "
+                  v-if="readmeData?.md"
+                  class="flex items-center h-8 gap-1.5 px-2 py-2 font-mono text-xs bg-bg-subtle border border-border-subtle border-solid rounded-md transition-colors duration-150 hover:(text-fg border-border-hover) active:scale-95 focus:border-border-hover hover:text-fg"
+                  :class="copiedReadme ? 'text-fg' : 'text-fg-muted'"
                   :aria-label="
                     copiedReadme ? $t('common.copied') : $t('package.readme.copy_as_markdown')
                   "

server/api/registry/readme/[...pkg].get.ts

@@ -107,7 +107,7 @@ export default defineCachedEventHandler(
       }
 
       if (!readmeContent || readmeContent === NPM_MISSING_README_SENTINEL) {
-        return { html: '', playgroundLinks: [], toc: [] }
+        return { html: '', markdown: '', playgroundLinks: [], toc: [] }
       }
 
       // Parse repository info for resolving relative URLs to GitHub