livekit-agents@1.2.18

## What's Changed
* chore: update to correct livekit-plugins-minimax-ai package by @davidzhao in https://github.com/livekit/agents/pull/3753
* New Spitch STT model: Mansa v1 by @temibabs in https://github.com/livekit/agents/pull/3748
* add missing file error for turn detection model by @tinalenguyen in https://github.com/livekit/agents/pull/3755
* Add Language Parameter Support for Rime Arcana TTS Model by @gokuljs in https://github.com/livekit/agents/pull/3757
* Update Letta voice API integration to use new endpoint by @cpfiffer in https://github.com/livekit/agents/pull/3736
* livekit-blingfire v1.0.1 by @theomonnom in https://github.com/livekit/agents/pull/3763
* fix blingfire windows compilation for python 3.14-freethreaded by @theomonnom in https://github.com/livekit/agents/pull/3766
* allow elevenlabs language code parameter to be null by @tinalenguyen in https://github.com/livekit/agents/pull/3761
* changes default base url for spelling by @aryeila in https://github.com/livekit/agents/pull/3768
* Improve streaming handling for Neuphonic by @alexshelkov in https://github.com/livekit/agents/pull/3703
* turn-detector: add turn detector v0.4.0-intl by @lwestn in https://github.com/livekit/agents/pull/3764
* fix(google): improved handling of tool_response_scheduling by @davidzhao in https://github.com/livekit/agents/pull/3781
* Update stt.py - Deepgram plugin allows PT for Keyterms by @cateet in https://github.com/livekit/agents/pull/3786
* skip exception log for StopResponse from a tool call by @longcw in https://github.com/livekit/agents/pull/3790
* restore root otel context for AgentTask and generate_reply in entrypoint by @longcw in https://github.com/livekit/agents/pull/3772
* feat: add preflight transcript via utterance by @dan-ince-aai in https://github.com/livekit/agents/pull/3654
* fix(google): do not pass in scheduling parameter by default by @davidzhao in https://github.com/livekit/agents/pull/3793
* Add Fish Audio TTS Plugin for LiveKit Agents by @ywkim in https://github.com/livekit/agents/pull/3720
* Shubhra/nvidia plugins by @Shubhrakanti in https://github.com/livekit/agents/pull/3392
* Undo `basic_agent` accidental commit in #3392 by @Shubhrakanti in https://github.com/livekit/agents/pull/3797
* fix: bithuman prewarm credential issue by @CathyL0 in https://github.com/livekit/agents/pull/3794
* Added missing parameters to Gladia by @Karamouche in https://github.com/livekit/agents/pull/3796
* livekit-agents 1.2.18 by @theomonnom in https://github.com/livekit/agents/pull/3806

## New Contributors
* @cpfiffer made their first contribution in https://github.com/livekit/agents/pull/3736
* @aryeila made their first contribution in https://github.com/livekit/agents/pull/3768
* @cateet made their first contribution in https://github.com/livekit/agents/pull/3786
* @ywkim made their first contribution in https://github.com/livekit/agents/pull/3720
* @Karamouche made their first contribution in https://github.com/livekit/agents/pull/3796

**Full Changelog**: https://github.com/livekit/agents/compare/livekit-agents@1.2.17...livekit-agents@1.2.18