libcompress 1.0.0

Pure Dart implementations of LZ4, Snappy, GZIP, and Zstd compression algorithms with no native dependencies.

1.0.0

• Initial release with pure Dart compression implementations
• LZ4: Full frame format support with configurable block sizes (64K, 256K, 1M, 4M) and compression levels 1-9 (HC mode)
• Snappy: Raw block format and streaming (framing) format with CRC32C checksums
• GZIP: Pure Dart DEFLATE implementation with compression levels 1-9, optional filename/comment metadata
• Zstd: Full RFC 8878 implementation with FSE/Huffman entropy coding, sequence encoding, repeat offsets, and compression levels 1-22
• Stream-based APIs for all codecs via CompressionStreamCodec
• Common codec interface via CompressionCodec and CodecFactory
• Security: All decompressors enforce configurable maxDecompressedSize limits
• CLI tool for compression/decompression with all codecs
• CLI compatibility verified with lz4, gzip, snzip, and zstd tools