Complete client UI i18n migration

Adds client-side i18n support, language settings, translated UI copy, and locale parity coverage.

packages/app/src/components/terminal-pane.tsx

@@ -10,6 +10,7 @@ import Animated, { runOnJS, useAnimatedReaction } from "react-native-reanimated"
 import { StyleSheet, useUnistyles } from "react-native-unistyles";
 import { encodeTerminalKeyInput } from "@getpaseo/protocol/terminal-key-input";
 import type { TerminalInputModeState } from "@getpaseo/protocol/terminal-input-mode";
+import { useTranslation } from "react-i18next";
 import { useHostRuntimeClient, useHostRuntimeIsConnected } from "@/runtime/host-runtime";
 import { useKeyboardShiftStyle } from "@/hooks/use-keyboard-shift-style";
 import { useAppVisible } from "@/hooks/use-app-visible";
@@ -169,6 +170,7 @@ export function TerminalPane({
   onOpenFileExplorer,
   onOpenWorkspaceFile,
 }: TerminalPaneProps) {
+  const { t } = useTranslation();
   const isAppVisible = useAppVisible();
   const { theme } = useUnistyles();
   const { settings } = useAppSettings();
@@ -750,7 +752,7 @@ export function TerminalPane({
   if (!client || !isConnected) {
     return (
       <View style={styles.centerState}>
-        <Text style={styles.stateText}>Host is not connected</Text>
+        <Text style={styles.stateText}>{t("workspace.terminal.hostDisconnected")}</Text>
       </View>
     );
   }