tests: purge editor drafts after a run

Tests that opened the card modal left hyprcrd-editor-draft:* entries
in localStorage. The pre-run purge cleared them before the baseline
backup, but anything the tests wrote during the run stayed behind —
the user's next card open then fired "unsaved draft from 0 min ago,
restore?" for a non-edit they didn't make. Repeat the purge after
restore so the runner closes with a clean slate.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

config.php

@@ -1,7 +1,7 @@
 <?php
 
 define('APP_NAME', 'hyprcrd');
-define('APP_VERSION', '1.9.9');
+define('APP_VERSION', '1.9.10');
 
 // Database path — writable directory, outside webroot
 // DB_PATH / UPLOAD_DIR can be pre-defined by the Electron router for app isolation