00e393f7b9
The export loop was opening a new DB connection per file AND starving the Qt event loop, causing the progress bar to freeze then jump and the app to crash during large copy exports. Fixes: - All record_symlink calls in both export paths now collect records and batch-insert in a single transaction at the end - Added explicit QApplication.processEvents() in export loops - Throttled progress label updates to every 10 files (text rendering was adding overhead on every iteration) - Moved shutil import out of inner loops Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>