refactor: clean upload pipeline and restore draco delivery

components/ui/Modal.tsx

@@ -1,7 +1,3 @@
-// ---------------------------------------------------------------------------
-// Shared modal wrapper — handles overlay, centering, dialog role, aria
-// ---------------------------------------------------------------------------
-
 import type { ReactNode } from 'react'
 
 interface ModalProps {
@@ -24,16 +20,11 @@ export default function Modal({ ariaLabelledBy, children }: ModalProps) {
   )
 }
 
-// ---------------------------------------------------------------------------
-// Shared modal footer with two buttons
-// ---------------------------------------------------------------------------
-
 interface ModalActionsProps {
   cancelLabel: string
   confirmLabel: string
   onCancel: () => void
   onConfirm: () => void
-  /** Tailwind classes for the confirm button (default: white bg) */
   confirmClassName?: string
   disabled?: boolean
 }

components/ui/icons.tsx

@@ -1,7 +1,3 @@
-// ---------------------------------------------------------------------------
-// Shared SVG icon components
-// ---------------------------------------------------------------------------
-
 interface IconProps {
   className?: string
 }