feat: refonte UX du dashboard (coquille, tri/filtre/pagination, ⌘K, toasts)

Refonte front (packages/web) : coquille applicative partagée (sidebar desktop +
barre d'onglets mobile + PageHeader, langue/push/logout centralisés) pilotée par
route.meta.layout ; design system (BaseButton/BaseBadge/SegmentedControl/EmptyState/
SkeletonRow, anneau de focus, icônes @lucide/vue) ; tri/filtre/recherche/pagination
côté client via useListControls (+ synchro URL) sur sessions/worktrees/groupes ;
section « À traiter », palette de commandes ⌘K, toasts. Aucune modif serveur/protocole/DB.

packages/web/src/i18n/en.ts

@@ -5,6 +5,12 @@ export default {
     cancel: 'Cancel',
     logout: 'Log out',
     language: 'Language',
+    refresh: 'Refresh',
+    back: 'Back',
+    search: 'Search',
+    settings: 'Settings',
+    close: 'Close',
+    retry: 'Retry',
   },
   login: {
     title: 'Sign in with your access token',
@@ -163,4 +169,127 @@ export default {
   ws: {
     reconnecting: 'Connection lost — reconnecting…',
   },
+  nav: {
+    worktrees: 'Worktrees',
+    sessions: 'Sessions',
+    groups: 'Groups',
+    settings: 'Settings',
+    waiting: 'waiting',
+  },
+  controls: {
+    searchPlaceholder: 'Search…',
+    results: 'no result | 1 result | {n} results',
+    sortBy: 'Sort by',
+    filters: 'Filters',
+    clearAll: 'Clear',
+  },
+  sort: {
+    asc: 'Ascending',
+    desc: 'Descending',
+    session: {
+      state: 'State',
+      recent: 'Most recent',
+      clients: 'Clients',
+      cwd: 'Directory',
+      command: 'Command',
+    },
+    worktree: {
+      main: 'Main first',
+      branch: 'Branch',
+      dirty: 'Changes',
+      ahead: 'Ahead',
+      behind: 'Behind',
+      activity: 'Activity',
+    },
+    repo: {
+      label: 'Name',
+      created: 'Created',
+      worktrees: 'Worktrees',
+      activity: 'Activity',
+    },
+    group: {
+      label: 'Name',
+      created: 'Created',
+      repos: 'Repositories',
+      activeSessions: 'Active sessions',
+    },
+  },
+  filter: {
+    state: {
+      label: 'State',
+      live: 'Live',
+      waiting: 'Waiting',
+      busy: 'Busy',
+      idle: 'Idle',
+      exited: 'Exited',
+      resumable: 'Resumable',
+    },
+    command: {
+      label: 'Command',
+    },
+    source: {
+      label: 'Source',
+      managed: 'Managed',
+      discovered: 'Discovered',
+    },
+    repo: {
+      label: 'Repository',
+    },
+    worktree: {
+      dirtiness: 'Changes',
+      dirty: 'Dirty',
+      clean: 'Clean',
+      session: 'Session',
+      with: 'With session',
+      without: 'Without session',
+      flags: 'Flags',
+      locked: 'Locked',
+      prunable: 'Prunable',
+    },
+  },
+  pagination: {
+    prev: 'Previous',
+    next: 'Next',
+    pageOf: 'Page {page} / {pageCount}',
+    perPage: 'Per page',
+    all: 'All',
+  },
+  palette: {
+    placeholder: 'Jump to repo, worktree, session, group…',
+    empty: 'No match',
+    hint: '↑↓ navigate · ↵ open · esc close',
+    types: {
+      repo: 'Repo',
+      worktree: 'Worktree',
+      session: 'Session',
+      group: 'Group',
+      action: 'Action',
+    },
+    actions: {
+      newSession: 'New session',
+      addRepo: 'Add repo',
+      newGroup: 'New group',
+    },
+  },
+  toast: {
+    sessionCreated: 'Session started',
+    sessionKilled: 'Session killed',
+    sessionResumed: 'Session resumed',
+    sessionForked: 'Session forked',
+    repoAdded: 'Repository added',
+    repoRemoved: 'Repository removed',
+    worktreeCreated: 'Worktree created',
+    worktreeDeleted: 'Worktree deleted',
+    pruned: 'Worktrees pruned',
+    groupCreated: 'Group created',
+    groupUpdated: 'Group updated',
+    groupDeleted: 'Group deleted',
+    genericError: 'Something went wrong',
+    dismiss: 'Dismiss',
+  },
+  attention: {
+    title: 'Needs attention',
+    count: 'no session waiting | 1 session waiting | {n} sessions waiting',
+    empty: 'Nothing waiting',
+  },
 };