feat: add semantic color palette and lint guard

components/upload-modal.html

@@ -1049,7 +1049,7 @@
         <div id="cloudflareUploadSection" class="hidden">
           <div class="space-y-8">
             <p
-              class="rounded-md border border-amber-500/40 bg-amber-500/10 p-3 text-sm text-amber-300"
+              class="rounded-md border border-status-warning-border bg-status-warning-surface p-3 text-sm text-status-warning-on"
             >
               This feature is experimental and may not be working correctly.
             </p>