fix(ui): add missing styling for queued/retrying states and processing speed labels

- Add --status-queued and --status-retrying CSS vars to all theme blocks
- Add .download-status-queued/.download-status-retrying CSS classes
- Add .download-progress-fill.queued/.retrying with pulse animation for retrying
- Wire retrying status into hover action buttons and context menu (pause/resume/redownload)
- Show 'Processing…'/'Muxing…' text in speed/ETA columns during processing state
- Fix light theme: add missing --status-* vars to :root block

src/components/DownloadTable.tsx

@@ -281,7 +281,7 @@ export const DownloadTable: React.FC<DownloadTableProps> = ({ filter }) => {
 
           <div className="h-[1px] bg-border-modal/60 my-1.5 mx-2"></div>
 
-          {(contextItem.status === 'downloading' || contextItem.status === 'queued') && (
+          {(contextItem.status === 'downloading' || contextItem.status === 'queued' || contextItem.status === 'retrying') && (
             <button
               onClick={() => {
                 setContextMenu(null);
@@ -293,7 +293,7 @@ export const DownloadTable: React.FC<DownloadTableProps> = ({ filter }) => {
             </button>
           )}
 
-          {(contextItem.status === 'paused' || contextItem.status === 'failed') && (
+          {(contextItem.status === 'paused' || contextItem.status === 'failed' || contextItem.status === 'retrying') && (
             <button
               onClick={() => {
                 setContextMenu(null);
@@ -305,7 +305,7 @@ export const DownloadTable: React.FC<DownloadTableProps> = ({ filter }) => {
             </button>
           )}
 
-          {['completed', 'failed', 'paused'].includes(contextItem.status) && (
+          {['completed', 'failed', 'paused', 'retrying'].includes(contextItem.status) && (
             <button
               onClick={() => {
                 setContextMenu(null);