feat(a11y): label icon-only buttons

Add accessible names (and aria-pressed for toggles) to the layout switcher,
overflow menu, selection clear, API key reveal/copy and pricing buttons,
reusing existing i18n keys. Replace the hard-coded English 'Menu' sr-only
text on the account cards with common.openMenu.

src/components/accounts/AccountsToolbar.tsx

@@ -112,6 +112,8 @@ export function AccountsToolbar(props: AccountsToolbarProps) {
                   size="icon"
                   className="h-7 w-7 cursor-pointer rounded-md"
                   onClick={() => onLayoutChange('auto')}
+                  aria-label={t('cloud.layout.auto')}
+                  aria-pressed={gridLayout === 'auto'}
                 >
                   <LayoutGrid className="h-3.5 w-3.5" />
                 </Button>
@@ -125,6 +127,8 @@ export function AccountsToolbar(props: AccountsToolbarProps) {
                   size="icon"
                   className="h-7 w-7 cursor-pointer rounded-md"
                   onClick={() => onLayoutChange('2-col')}
+                  aria-label={t('cloud.layout.twoCol')}
+                  aria-pressed={gridLayout === '2-col'}
                 >
                   <Columns2 className="h-3.5 w-3.5" />
                 </Button>
@@ -138,6 +142,8 @@ export function AccountsToolbar(props: AccountsToolbarProps) {
                   size="icon"
                   className="h-7 w-7 cursor-pointer rounded-md"
                   onClick={() => onLayoutChange('3-col')}
+                  aria-label={t('cloud.layout.threeCol')}
+                  aria-pressed={gridLayout === '3-col'}
                 >
                   <Columns3 className="h-3.5 w-3.5" />
                 </Button>
@@ -151,6 +157,8 @@ export function AccountsToolbar(props: AccountsToolbarProps) {
                   size="icon"
                   className="h-7 w-7 cursor-pointer rounded-md"
                   onClick={() => onLayoutChange('list')}
+                  aria-label={t('cloud.layout.list')}
+                  aria-pressed={gridLayout === 'list'}
                 >
                   <List className="h-3.5 w-3.5" />
                 </Button>
@@ -164,6 +172,8 @@ export function AccountsToolbar(props: AccountsToolbarProps) {
                   size="icon"
                   className="h-7 w-7 cursor-pointer rounded-md"
                   onClick={() => onLayoutChange('compact')}
+                  aria-label={t('cloud.layout.compact')}
+                  aria-pressed={gridLayout === 'compact'}
                 >
                   <LayoutList className="h-3.5 w-3.5" />
                 </Button>
@@ -206,7 +216,12 @@ export function AccountsToolbar(props: AccountsToolbarProps) {
         {/* More Options Dropdown */}
         <DropdownMenu>
           <DropdownMenuTrigger asChild>
-            <Button variant="outline" size="icon" className="cursor-pointer bg-white/[0.02]">
+            <Button
+              variant="outline"
+              size="icon"
+              className="cursor-pointer bg-white/[0.02]"
+              aria-label={t('common.openMenu')}
+            >
               <MoreHorizontal className="h-4 w-4" />
             </Button>
           </DropdownMenuTrigger>

src/components/accounts/BatchActionBar.tsx

@@ -29,6 +29,7 @@ export function BatchActionBar({
           size="icon"
           className="h-6 w-6 rounded-full"
           onClick={onClearSelection}
+          aria-label={t('cloud.batch.clear')}
         >
           <X className="h-4 w-4" />
         </Button>

src/components/usage/ModelPricingDialog.tsx

@@ -258,6 +258,7 @@ export const ModelPricingDialog: React.FC<ModelPricingDialogProps> = ({
                             className="text-muted-foreground hover:text-foreground h-6 w-6"
                             onClick={() => handleReset(model)}
                             title="Reset to default"
+                            aria-label={`Reset ${model} pricing to default`}
                           >
                             <RotateCcw className="h-3 w-3" />
                           </Button>

src/routes/proxy.tsx

@@ -405,6 +405,8 @@ print(response.choices[0].message.content)`;
                       className="absolute top-0 right-0 h-full px-3 py-2 hover:bg-transparent"
                       onClick={() => setShowKey(!showKey)}
                       title={showKey ? t('proxy.config.hide_key') : t('proxy.config.show_key')}
+                      aria-label={showKey ? t('proxy.config.hide_key') : t('proxy.config.show_key')}
+                      aria-pressed={showKey}
                     >
                       {showKey ? (
                         <EyeOff className="text-muted-foreground h-4 w-4" />
@@ -537,6 +539,7 @@ print(response.choices[0].message.content)`;
                     variant="ghost"
                     size="icon"
                     className="h-7 w-7 text-blue-300 hover:bg-blue-500/10"
+                    aria-label={t('proxy.copy')}
                     onClick={() =>
                       copyToClipboard(`http://${selectedIp || 'localhost'}:${proxyConfig.port}/v1`)
                     }
@@ -906,6 +909,7 @@ print(response.choices[0].message.content)`;
                         variant="ghost"
                         size="icon"
                         className="h-8 w-8"
+                        aria-label={t('proxy.copy')}
                         onClick={(e) => {
                           e.stopPropagation();
                           copyToClipboard(getCurlExample(activeModelTab));
@@ -938,6 +942,7 @@ print(response.choices[0].message.content)`;
                         variant="ghost"
                         size="icon"
                         className="h-8 w-8"
+                        aria-label={t('proxy.copy')}
                         onClick={(e) => {
                           e.stopPropagation();
                           copyToClipboard(getPythonExample(activeModelTab));

src/routes/usage.tsx

@@ -524,6 +524,7 @@ function UsagePage() {
                         size="icon"
                         className="ml-2 h-5 w-5 hover:bg-white/10"
                         onClick={() => setIsPricingDialogOpen(true)}
+                        aria-label="Model pricing settings"
                       >
                         <Settings className="text-muted-foreground h-3 w-3" />
                       </Button>