🗂️ refactor: implement Phase 2 folder-pattern compliance

- Move dialogs to src/components/dialogs/ folder:
  - delete-session-dialog.tsx
  - delete-all-archived-sessions-dialog.tsx
  - new-project-modal.tsx
  - workspace-picker-modal.tsx
- Update all imports to reference new dialog locations
- Create barrel export (index.ts) for board-view/components/kanban-card/
- Create barrel exports (index.ts) for all 11 settings-view subfolders:
  - api-keys/, api-keys/hooks/, appearance/, audio/, cli-status/
  - components/, config/, danger-zone/, feature-defaults/
  - keyboard-shortcuts/, shared/

This is Phase 2 of folder-pattern.md compliance: organizing dialogs
and establishing consistent barrel export patterns across all view subfolders.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

apps/ui/src/components/dialogs/delete-all-archived-sessions-dialog.tsx

@@ -0,0 +1,55 @@
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from '@/components/ui/dialog';
+import { Button } from '@/components/ui/button';
+import { Trash2 } from 'lucide-react';
+
+interface DeleteAllArchivedSessionsDialogProps {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  archivedCount: number;
+  onConfirm: () => void;
+}
+
+export function DeleteAllArchivedSessionsDialog({
+  open,
+  onOpenChange,
+  archivedCount,
+  onConfirm,
+}: DeleteAllArchivedSessionsDialogProps) {
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent data-testid="delete-all-archived-sessions-dialog">
+        <DialogHeader>
+          <DialogTitle>Delete All Archived Sessions</DialogTitle>
+          <DialogDescription>
+            Are you sure you want to delete all archived sessions? This action cannot be undone.
+            {archivedCount > 0 && (
+              <span className="block mt-2 text-yellow-500">
+                {archivedCount} session(s) will be deleted.
+              </span>
+            )}
+          </DialogDescription>
+        </DialogHeader>
+        <DialogFooter>
+          <Button variant="ghost" onClick={() => onOpenChange(false)}>
+            Cancel
+          </Button>
+          <Button
+            variant="destructive"
+            onClick={onConfirm}
+            data-testid="confirm-delete-all-archived-sessions"
+          >
+            <Trash2 className="w-4 h-4 mr-2" />
+            Delete All
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}