test: add full playwright ui regression coverage

admin/src/pages/revisions-page.tsx

@@ -248,6 +248,7 @@ export function RevisionsPage() {
 
         <div className="flex flex-wrap items-center gap-3">
           <Input
+            data-testid="revisions-slug-filter"
             value={slugFilter}
             onChange={(event) => setSlugFilter(event.target.value)}
             placeholder="按 slug 过滤，例如 hello-world"
@@ -304,7 +305,12 @@ export function RevisionsPage() {
                     </TableCell>
                     <TableCell className="text-muted-foreground">{item.created_at}</TableCell>
                     <TableCell className="text-right">
-                      <Button variant="outline" size="sm" onClick={() => void openDetail(item.id)}>
+                      <Button
+                        variant="outline"
+                        size="sm"
+                        onClick={() => void openDetail(item.id)}
+                        data-testid={`revision-open-${item.id}`}
+                      >
                         <History className="h-4 w-4" />
                         查看 / 对比
                       </Button>
@@ -371,6 +377,7 @@ export function RevisionsPage() {
                           key={mode}
                           size="sm"
                           disabled={restoring !== null || !selected.item.has_markdown}
+                          data-testid={`revision-restore-${mode}`}
                           onClick={() => void runRestore(mode)}
                         >
                           <RotateCcw className="h-4 w-4" />