feat(terminal): refactor runtime and add mobile workspace (#2280)

Replace the legacy terminal flow with a shared authenticated WebSocket
runtime used across web, desktop, relay, and mobile surfaces.

- introduce the v3 terminal protocol with scoped attachments, snapshots,
  ordered output, bounded replay history, reconnects, and explicit lifecycle
- harden PTY creation, restart, resize, close, force-kill, idle cleanup,
  shell selection, login mode, environment sanitization, and appearance sync
- add runtime-aware terminal APIs with relay authentication and Electron parity
- add a fullscreen mobile terminal workspace with touch scrolling,
  long-press selection, safe-area controls, quick keys, and Ctrl/Alt input
- add terminal selection attachments, preview detection, project actions,
  shell settings, and localized UI
- harden Ghostty rendering, resize recovery, Unicode handling, block
  characters, line height, and stale-row behavior
- remove the obsolete terminal SSE path and update reverse-proxy guidance
- expand terminal runtime, transport, input, selection, and store coverage
- avoid duplicate web builds when preparing mobile assets in root CI builds

packages/ui/src/lib/i18n/messages/fr.ts

@@ -2,6 +2,11 @@ import { settingsDict } from './fr.settings';
 
 export const dict = {
   ...settingsDict,
+  'terminalView.actions.attachSelection': 'Joindre la sortie sélectionnée',
+  'terminalView.actions.restart': 'Redémarrer le terminal',
+  'chat.message.terminalContext': '{terminal}, lignes {start}-{end}',
+  'chat.chatInput.terminalContext': '{terminal}, lignes {start}-{end}',
+  'chat.chatInput.terminalContextRemove': 'Supprimer le contexte du terminal',
   'common.loading': 'Chargement...',
   'common.unavailable': 'Indisponible',
   'common.language.english': 'Anglais',
@@ -1287,6 +1292,8 @@ export const dict = {
   'terminalView.quickKeys.tabAria': 'Languette',
   'terminalView.quickKeys.controlLabel': 'Ctrl',
   'terminalView.quickKeys.controlModifierAria': 'Modificateur de contrôle',
+  'terminalView.quickKeys.altLabel': 'Alt',
+  'terminalView.quickKeys.altModifierAria': 'Modificateur Alt',
   'terminalView.quickKeys.commandModifierAria': 'Modificateur de commande',
   'terminalView.quickKeys.arrowUpAria': 'Flèche vers le haut',
   'terminalView.quickKeys.arrowLeftAria': 'Flèche vers la gauche',
@@ -2598,6 +2605,7 @@ export const dict = {
   'mobile.menu.titleAria': 'Outils de l’espace de travail',
   'mobile.menu.files': 'Fichiers',
   'mobile.menu.changes': 'Modifications',
+  'mobile.menu.terminal': 'Terminal',
   'mobile.menu.mcp': 'MCP',
   'mobile.menu.instances': 'Instances',
   'mobile.menu.update': 'Mettre à jour',