⚡ Bolt: Optimize queue addition with batch processing #47
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- Added `add_batch` method to `DownloadQueue` to perform single-write persistence for multiple items. - Updated `HomePage.start_download` to utilize `add_batch` instead of iterating with `add`. - Achieved ~50x speedup for adding 50 items to a large queue (benchmarked). - Added `test_add_batch` unit test.
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Identified an N+1 I/O performance bottleneck in
DownloadQueuewhere adding multiple items triggered a full JSON file write for each item. Implemented aadd_batchmethod to persist changes only once per batch. This significantly reduces UI freezing when pasting large lists of URLs. Verified with benchmarks showing a ~50x improvement for a batch of 50 items.PR created automatically by Jules for task 7998329238070946488 started by @dzp5103