First release.

• UTDGiftProtocol — typed send/receive over the room's data channel. sendGift(giftId, count, receiverIds, extra) and a giftStream of decoded UTDGiftEvents, not raw JSON. extra is app-defined and passes through verbatim. A malformed gift from any peer is dropped, never thrown — the same channel carries seat updates and chat. The local sender's own gift is emitted once and the room's echo of it ignored, so it never plays twice.
• UTDGiftPlayList — plays one gift at a time in arrival order, so two gifts arriving together no longer animate on top of each other. Bounded (maxQueueLength), dropping the oldest pending under a gift storm, and with a maxPlayDuration backstop so a player that never reports completion — a failed asset, a widget disposed mid-play — cannot wedge the queue and silence gifts for the rest of the session.
• UTDGiftOverlay — drives the queue and hands each gift to a builder the app supplies.
• No animation player and no file cache are shipped, and the package has zero plugin dependencies. Every app already has both; a second copy of either would be dead weight on the user's device.
• UTDGiftTransport — the package binds to anything that can send and receive maps, so one implementation serves an audio room, a live stream, or an app's own channel.
• UTDGiftProtocol.encode is public so a SERVER can emit the identical message. That is the correct design when money is involved: sendGift is a display event and is spoofable by construction — the charge belongs on the backend.