a11y(AddEventDialog): i18n staged-list label + add title aria-label

src/renderer/components/timeline/AddEventDialog.tsx

@@ -229,7 +229,7 @@ export function AddEventDialog({ open, onOpenChange, defaultProjectId, onRecordH
           <p className="text-xs text-muted-foreground py-2">{t('timeline.emptyStagedHint')}</p>
         ) : (
           <ScrollArea className="max-h-40 border rounded-md">
-            <ul className="flex flex-col" aria-label="Staged events">
+            <ul className="flex flex-col" aria-label={t('timeline.staged', { count: staged.length })}>
               {staged.map((e) => (
                 <li key={e.id} className="flex items-center gap-2 px-2 py-1.5 text-sm">
                   <Check className="h-3.5 w-3.5 text-chart-2 shrink-0" />
@@ -277,6 +277,7 @@ export function AddEventDialog({ open, onOpenChange, defaultProjectId, onRecordH
           <Input
             ref={titleRef}
             placeholder={t('timeline.eventTitlePlaceholder')}
+            aria-label={t('timeline.eventTitlePlaceholder')}
             value={title}
             onChange={(e) => setTitle(e.target.value)}
             autoFocus