supportsSyncCompression

Whether this platform supports the synchronous compress and decompress functions.

• JVM, Android, Apple: true - native zlib available

• JS (Node.js): true - sync zlib module available

• JS (Browser): false - only async CompressionStream API, use SuspendingStreamingCompressor

Shared JS/wasmJs compression implementation. Dispatches to Node.js sync APIs or returns browser-unsupported errors.

JVM/Android supports synchronous compression via java.util.zip.

Linux supports synchronous compression via system zlib.