Media-type sniffing no longer decodes entire attachments

Patch Changes

• 1efdef8: fix(ai): bound media-type sniffing decode for ID3-prefixed input

  Media-type detection stripped ID3 tags before the ~18-byte prefix cap, decoding the entire base64 attachment (plus a full-size copy) whenever the data began with ID3/SUQz. This turned the intended O(1) sniff into an O(N) decode of the whole attachment. Detection now decodes at most a bounded prefix and skips the ID3 tag within that bound, keeping cost O(1) in input size on all paths (image, audio, and combined).

• 49414cf: Return response piping promises so callers can catch stream read and write errors.

• Updated dependencies [e7d064f]

  • @ai-sdk/gateway@3.0.156