@livekit/agents-plugin-deepgram@1.9.1

### Patch Changes

-   Add `TTSv2`, a Deepgram Flux TTS client for the `/v2/speak` endpoint, alongside the existing Aura `TTS` rather than replacing it. Streaming and batch output are `linear16` only. - [#2514](https://github.com/livekit/agents-js/pull/2514) ([@dg-edcharbeneau](https://github.com/dg-edcharbeneau))

-   Send all audio frames to Deepgram instead of filtering quiet frames locally, preserving silence for endpointing and keeping provider timestamps aligned with the input audio. Usage now includes the previously filtered audio. - [#2586](https://github.com/livekit/agents-js/pull/2586) ([@chenghao-mou](https://github.com/chenghao-mou))

-   Detect a silently dropped STT socket instead of hanging. Adds a ping/pong heartbeat to both STT streams, makes the v1 stream observe its connection monitor (`wsMonitor.result`, not `wsMonitor`, which left its retry path unreachable), lets the v2 stream reconnect from a mid-session close, and cancels an attempt's audio read on teardown so a torn-down sender cannot steal frames from the next one. - [#2470](https://github.com/livekit/agents-js/pull/2470) ([@GregHolmes](https://github.com/GregHolmes))

-   Release a TTS's pooled provider connections once nothing uses it any more. Every activity and session that uses a TTS instance counts as a user; when the last one closes, or `Agent.updateOptions` swaps the instance out, its idle connections close and any in-flight synthesis closes its connection when it finishes instead of returning it to the pool. Pooled websockets of a handed-off agent otherwise idled until the process exited. Instances shared between agents or sessions keep their connections until the last user is done, and a session's own TTS stays warm across every handoff. Adds `TTS.releaseIdleConnections()` and `ConnectionPool.releaseIdle()`, implemented by the inference TTS and the Cartesia, Deepgram, Fish Audio, Rime and xAI plugins. The Inworld stream now keeps one pool object for its whole lifetime, so an API key update mid-synthesis no longer strands its listener. - [#2567](https://github.com/livekit/agents-js/pull/2567) ([@davidzhao](https://github.com/davidzhao))

-   Stop the STT send loops from retaining every audio frame for the life of a stream, and from stealing the next attempt's first frame. `inference.STT` and the Cartesia, Deepgram and Meta STTs raced each read against one long-lived abort promise; every race appended a reaction to that never-settling promise, and each reaction kept the settled read and its `AudioFrame` alive (nodejs/node#17469) — about 8 MB per minute per stream under continuous speech, until the job hit its memory limit. Reads now go through the input queue's cancellable `next({ signal })`, so a torn-down sender's read is cancelled instead of left parked in the queue, and any remaining race goes through `waitUntilAborted`, which installs and removes its own abort listener per call. `Queue.get` and `AsyncIterableQueue.next` now honour an already-aborted signal even when items are buffered, so a cancelled reader never takes a frame the replacement reader needs. - [#2544](https://github.com/livekit/agents-js/pull/2544) ([@praveen4star](https://github.com/praveen4star))

-   Updated dependencies \[[`3b086bc`](https://github.com/livekit/agents-js/commit/3b086bc19a403cd1d622f8e458c744ad69fb48a5), [`72898e1`](https://github.com/livekit/agents-js/commit/72898e1e583874860b5a1d8d241195ecf8d99d54), [`f6ea8df`](https://github.com/livekit/agents-js/commit/f6ea8df234c9f4a992e67908f3f100c956a9acc0), [`7e23bc5`](https://github.com/livekit/agents-js/commit/7e23bc56364cdd411163e31fc0b74bafc75851c3), [`3a8b621`](https://github.com/livekit/agents-js/commit/3a8b6210cb0175c79d410afae5fe0bba0c19c08d), [`c9e1f26`](https://github.com/livekit/agents-js/commit/c9e1f26172681190257e8e01b86c7fe90e4e15dd), [`f6f9e7a`](https://github.com/livekit/agents-js/commit/f6f9e7ad1614d22c21b935ee4101a727eea1b145), [`d3a0abe`](https://github.com/livekit/agents-js/commit/d3a0abead85e7d9db79c355b345c515eb6aa42fe), [`21aa476`](https://github.com/livekit/agents-js/commit/21aa4763f2b89506fb1e56f6879b23e41a5bcfa6), [`38f65f8`](https://github.com/livekit/agents-js/commit/38f65f8a4c790f0bc4b62b1aba407cf1f95a2360), [`646f0bc`](https://github.com/livekit/agents-js/commit/646f0bc70f4a55d9b282dde8b25ebfb5be818fb7), [`1244049`](https://github.com/livekit/agents-js/commit/1244049976d3caea04debef32ad72e4785f20d99), [`1244049`](https://github.com/livekit/agents-js/commit/1244049976d3caea04debef32ad72e4785f20d99), [`1fc4290`](https://github.com/livekit/agents-js/commit/1fc429084d063d7b7fd4f61eec0df3378b066777), [`5287be1`](https://github.com/livekit/agents-js/commit/5287be114b12fb16f0a3eb6ccca4173e6e3eb219), [`d650cc0`](https://github.com/livekit/agents-js/commit/d650cc025c6322e0bc822a9ab6cace9d1fa29648), [`f089dc5`](https://github.com/livekit/agents-js/commit/f089dc52967ccab3f70db449dddc52af664dea61), [`40bf9b1`](https://github.com/livekit/agents-js/commit/40bf9b13f3b71fe50076f53609aa63af449737b4), [`1244049`](https://github.com/livekit/agents-js/commit/1244049976d3caea04debef32ad72e4785f20d99), [`b7ad990`](https://github.com/livekit/agents-js/commit/b7ad990c5faa424b31697bd2e868232f81f2bdf5), [`7ab8bd8`](https://github.com/livekit/agents-js/commit/7ab8bd801bc78d3c88c8b50904f1d90e81d976b8), [`b7ad990`](https://github.com/livekit/agents-js/commit/b7ad990c5faa424b31697bd2e868232f81f2bdf5), [`546dc33`](https://github.com/livekit/agents-js/commit/546dc3330d2543a61f3291b60e72e881d4b1e4b4), [`5481379`](https://github.com/livekit/agents-js/commit/5481379b435119aba4ae00779ce6f3c2e2e39977)]:
    -   @livekit/agents@1.9.1