Add i18n foundation and translations (#1027)

* feat: add i18n foundation

* feat: localize sessions sidebar

* Localize multirun/scheduled tasks and fix dialog dropdown interactions

* localize git sidebar surface and add zh-CN keys

* feat(ui): localize context panel, diff/plan views, and context sidebar content

* fix(config): resolve user config home via fs/home before embedded home

* localize header/chat UI and complete model/worktree panel strings

* localize worktree + github issue/pr dialog flows

* localize settings sections and split settings i18n dictionaries

* localize additional settings sections and sidebars

* localize more settings pages and dialogs

* fix settings select trigger localization

* localize tunnel settings ui surface

* localize additional settings sections

* localize keyboard shortcuts labels in settings

* localize terminal and utility dialogs surfaces

* feat(i18n): localize remaining UI strings

* Add Ukrainian locale

* Add Spanish locale

* Add Brazilian Portuguese locale

* Polish locale translations

packages/ui/src/components/terminal/TerminalViewport.tsx

@@ -9,6 +9,7 @@ import type { TerminalChunk } from '@/stores/useTerminalStore';
 import { copyTextToClipboard } from '@/lib/clipboard';
 import { cn } from '@/lib/utils';
 import { OverlayScrollbar } from '@/components/ui/OverlayScrollbar';
+import { useI18n } from '@/lib/i18n';
 
 let ghosttyPromise: Promise<Ghostty> | null = null;
 
@@ -94,6 +95,7 @@ const TerminalViewport = React.forwardRef<TerminalController, TerminalViewportPr
     },
     ref
   ) => {
+    const { t } = useI18n();
     const containerRef = React.useRef<HTMLDivElement>(null);
     const viewportRef = React.useRef<HTMLElement | null>(null);
     const terminalRef = React.useRef<GhosttyTerminal | null>(null);
@@ -1512,7 +1514,7 @@ const TerminalViewport = React.forwardRef<TerminalController, TerminalViewportPr
                 tabIndex={-1}
                 enterKeyHint="send"
                 data-terminal-hidden-input="true"
-                aria-label="Terminal input"
+                aria-label={t('terminalView.viewport.inputAria')}
                 aria-hidden="true"
                 style={{
                   ...hiddenInputStyle,
@@ -1539,7 +1541,7 @@ const TerminalViewport = React.forwardRef<TerminalController, TerminalViewportPr
                 tabIndex={-1}
                 enterKeyHint="send"
                 data-terminal-hidden-input="true"
-                aria-label="Terminal input"
+                aria-label={t('terminalView.viewport.inputAria')}
                 aria-hidden="true"
                 style={{
                   ...hiddenInputStyle,