Streaming ZIP

� 84% Memory Reduction - New streaming architecture: 2.7 MB vs 17 MB (for 1M rows!)
� Zero Temp Files - Stream XML directly into ZIP compressor (no disk I/O)
⚡ Same Speed - ~1400ms for 1M rows (compression level 6)
🎯 ZeroTempWorkbook - New API for absolute minimal memory usage
� Streaming ZIP Writer - On-the-fly compression with data descriptors
💾 Production Ready - 2.7 MB RAM = run in 64 MB containers!