@livekit/agents-plugin-google@1.9.1

### Patch Changes

-   Send a bare `turnComplete` instead of an empty `turns` array when requesting a reply on Gemini Live models that take no placeholder user turn; the SDK rejected the empty array and the send task died, so `generateReply()` never produced a reply on `gemini-3.8-live`. - [#2506](https://github.com/livekit/agents-js/pull/2506) ([@anzemur](https://github.com/anzemur))

-   Stamp `type: 'realtime_model_error'` on the Gemini Live error event so `AgentSession` forwards it as `AgentSessionEventTypes.Error` instead of dropping it; the OpenAI realtime plugins already do. - [#2509](https://github.com/livekit/agents-js/pull/2509) ([@anzemur](https://github.com/anzemur))

-   Set `propertyOrdering` on every object in a Live API tool's parameter schema, so Gemini generates the arguments in the order the tool declares them instead of alphabetically. - [#2551](https://github.com/livekit/agents-js/pull/2551) ([@JustinScitech](https://github.com/JustinScitech))

-   Report reasoning tokens in usage metrics. `CompletionUsage`, `LLMMetrics` and `RealtimeModelMetrics` gain a `reasoningTokens` field, aggregated into `LLMModelUsage.outputReasoningTokens` and emitted as the `gen_ai.usage.reasoning*` span attributes — matching how the Python framework exposes them. - [#2517](https://github.com/livekit/agents-js/pull/2517) ([@tinalenguyen](https://github.com/tinalenguyen))

    The Gemini Live plugin now maps `usageMetadata.thoughtsTokenCount` onto that field. Gemini counts thinking tokens inside `responseTokenCount`, so `reasoningTokens` is reported alongside `outputTokens` rather than added to it, and is left `undefined` when the provider omits it — a reported zero stays distinguishable from a missing count without deriving it from `totalTokens - inputTokens - outputTokens`.

-   Add the `gemini-3.8-flash-tts` and `gemini-3.8-flash-lite-tts` models to Gemini TTS, with expressive mode support. Delivery markers become per-part `speech_metadata.style`, while sounds, pauses and emphasis lower to Gemini's inline tags. The 3.8 models also accept multi-speaker configs (`speakers` + `speaker`). Expressive mode now works for any non-streaming TTS that declares a markup dialect, since `tts.StreamAdapter` lowers the markup. Transcript stripping also no longer leaves a stray space where a marker opened a turn or line, or closed the turn. - [#2576](https://github.com/livekit/agents-js/pull/2576) ([@tinalenguyen](https://github.com/tinalenguyen))

-   Preserve free-form object fields in Gemini text API function tool schemas. - [#2516](https://github.com/livekit/agents-js/pull/2516) ([@rosetta-livekit-bot](https://github.com/apps/rosetta-livekit-bot))

-   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