livekit-agents@1.5.14

## What's Changed
* (openai realtime): add gpt-realtime-2 model str by @tinalenguyen in https://github.com/livekit/agents/pull/5791
* (healthcare example): remove filesearch and pdf by @tinalenguyen in https://github.com/livekit/agents/pull/5795
* chore(worker): update worker warnings AGT-2909 by @chenghao-mou in https://github.com/livekit/agents/pull/5771
* fix(voice): race between flush and clear_buffer on interrupt leaks unplayed transcript by @longcw in https://github.com/livekit/agents/pull/5798
* fix(vad): add support for vad reset directly without stream close by @chenghao-mou in https://github.com/livekit/agents/pull/5687
* feat(inworld tts): add delivery_mode parameter for inworld-tts-2 by @chrisackermann in https://github.com/livekit/agents/pull/5801
* fix(voice): wait for end-of-turn task when waiting for user inactivity by @longcw in https://github.com/livekit/agents/pull/5792
* Adding GnaniAI STT plugin by @Gnani-AI-Mintlify in https://github.com/livekit/agents/pull/5769
* (gnani): fix py.typed and remove changesets by @tinalenguyen in https://github.com/livekit/agents/pull/5816
* fix(voice): propagate ChatMessage.interrupted through proto serializer by @toubatbrian in https://github.com/livekit/agents/pull/5824
* fix(anthropic): recreate stream on retry by @he-yufeng in https://github.com/livekit/agents/pull/5820
* fix(llm): convert per-turn instructions on the very first turn too by @theomonnom in https://github.com/livekit/agents/pull/5828
* feat(background_audio): add fade_in / fade_out to AudioConfig by @theomonnom in https://github.com/livekit/agents/pull/5832
* fix(plugins/sarvam): thread language_probability into SpeechData.confidence by @hashirventhodi in https://github.com/livekit/agents/pull/5830
* fix(lemonslice): bind avatar audio output before the upstream session HTTP call by @theomonnom in https://github.com/livekit/agents/pull/5837
* feat(voice/avatar): kick avatar participant on aclose + wait_for_join helper by @theomonnom in https://github.com/livekit/agents/pull/5836
* feat(examples): add LemonSlice avatar with switchable personas by @theomonnom in https://github.com/livekit/agents/pull/5834
* chore(playground): list frontdesk first by @theomonnom in https://github.com/livekit/agents/pull/5838
* fix: 4xx errors should not be retryable by @davidzhao in https://github.com/livekit/agents/pull/5831
* livekit-agents@1.5.13 by @github-actions[bot] in https://github.com/livekit/agents/pull/5835
* feat(assemblyai): add continuous_partials and interruption_delay stre… by @dlange-aai in https://github.com/livekit/agents/pull/5819
* ci(deploy-examples): include avatar in matrix + wire LEMONSLICE_API_KEY by @theomonnom in https://github.com/livekit/agents/pull/5839
* docs: clarify MCP support bullet by @scosemicolon in https://github.com/livekit/agents/pull/5822
* fix(core): replace frame drop with silence frame AGT-2914 by @chenghao-mou in https://github.com/livekit/agents/pull/5815
* feat(plugins-soniox): surface per-run language segments end-to-end by @MSameerAbbas in https://github.com/livekit/agents/pull/5730
* use stt timestamps as last speaking time by @chenghao-mou in https://github.com/livekit/agents/pull/5672
* docs: fix Gemini model version in avatar example README by @detail-app[bot] in https://github.com/livekit/agents/pull/5842
* handle leaked chat-template tokens in function call args by @davidzhao in https://github.com/livekit/agents/pull/5840
* fix(voice): restrict stt pipeline reuse to default stt_node by @longcw in https://github.com/livekit/agents/pull/5803
* feat(google): integration for AI Platform LLMs by @davidzhao in https://github.com/livekit/agents/pull/5843
* fix: return function argument errors (ToolError) to LLM by @davidzhao in https://github.com/livekit/agents/pull/5846
* refactor(llm): unified ToolError contract for tool arg validation by @longcw in https://github.com/livekit/agents/pull/5807
* feat(openai): stream input_audio_transcription delta events by @longcw in https://github.com/livekit/agents/pull/5859
* fix(voice): block on_user_turn_exceeded during agent handoff by @longcw in https://github.com/livekit/agents/pull/5858
* fix(voice): reset user turn tracker on clear_user_turn by @longcw in https://github.com/livekit/agents/pull/5857
* fix(elevenlabs): always close TTS stream context on cancellation by @longcw in https://github.com/livekit/agents/pull/5845
* Update download-files deprecation message by @bcherry in https://github.com/livekit/agents/pull/5781
* fix(llm): preserve Field() constraints on function tool arguments by @theomonnom in https://github.com/livekit/agents/pull/5861
* fix(soniox): surface STT server errors by @he-yufeng in https://github.com/livekit/agents/pull/5864
* Fix ElevenLabs websocket context id handling by @flynn-hamming in https://github.com/livekit/agents/pull/5813
* livekit-agents@1.5.14 by @github-actions[bot] in https://github.com/livekit/agents/pull/5870

## New Contributors
* @Gnani-AI-Mintlify made their first contribution in https://github.com/livekit/agents/pull/5769
* @he-yufeng made their first contribution in https://github.com/livekit/agents/pull/5820
* @hashirventhodi made their first contribution in https://github.com/livekit/agents/pull/5830
* @scosemicolon made their first contribution in https://github.com/livekit/agents/pull/5822
* @flynn-hamming made their first contribution in https://github.com/livekit/agents/pull/5813

**Full Changelog**: https://github.com/livekit/agents/compare/livekit-agents@1.5.12...livekit-agents@1.5.14