- dev_run.sh: also remove app.db-shm and app.db-wal on reset to fix
SQLite disk I/O error from stale WAL/SHM files
- articles bulk: add checkboxes to grouped rows (data-ids holds all
variant IDs); checking a group selects EN+DE together
- restore select-all checkbox in grouped <th>
- add toggleArticleGroupSelect() JS function
- fix htmx:afterSwap to re-check group checkboxes correctly
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>