feat: add CLI command for importing and exporting Pocket ID data (#998)

Co-authored-by: Alessandro (Ale) Segala <43508+ItalyPaleAle@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

tests/utils/fs.util.ts

@@ -0,0 +1,7 @@
+import path from 'path';
+
+export const tmpDir = pathFromRoot('.tmp');
+
+export function pathFromRoot(p: string): string {
+	return path.resolve(path.dirname(new URL(import.meta.url).pathname), '..', p);
+}