perf: implement streaming XML parsing for large folder operations #16230
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- Add StreamingReadFolderRemoteOperation for memory-efficient folder reading using SAX parser - Add PropFindSaxHandler for streaming XML parsing of PROPFIND responses - Prevent OutOfMemoryError for folders with thousands of files by avoiding full XML loading - Integrate streaming parser into RefreshFolderOperation with fallback to legacy method - Add batch processing for large folders (500 files per batch) in FileDataStorageManager - Improve logging levels and add thread name tracking for better debugging
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perf: implement streaming XML parsing for large folder operations