Module framing 

Transparent zstd compression for wire frames.

Frame format: [flags: u8] [body...]

• flags & 0x01 = body is zstd compressed
• Payloads < COMPRESSION_THRESHOLD bytes: stored uncompressed
• Payloads >= threshold: compressed with zstd level 3, used only if smaller

Constants

COMPRESSION_THRESHOLD

Minimum payload size to attempt compression.

MAX_DECOMPRESSED_SIZE

Maximum allowed decompressed size (256 MB) to prevent decompression bombs.

Functions

decode_framed

Decode a framed payload: read flags byte, decompress if needed.

encode_framed

Encode data into a framed payload: [flags: u8] [body...]