snapshot: AlertCenter拆分前快照

frontend/src/components/monitor/AlertRulesTab.tsx

@@ -171,8 +171,8 @@ export function AlertRulesTab({
                           {rule.source || '--'}
                         </code>
                       </TableCell>
-                      <TableCell>
-                        <code className="text-xs text-blue-300">
+                      <TableCell className="max-w-[180px]">
+                        <code className="text-xs text-blue-300 block truncate" title={rule.expression}>
                           {rule.expression || '--'}
                         </code>
                       </TableCell>