Pre-release v0.9.0 quality checks

[barhanc]

Tracking issue for things to test before v0.9.0 release. Assign yourself to the given task by adding your name next to the item in the list. For each change one should:

• Read the documentation and verify if it's correct and clear
• Build basic applications with a given feature
• Try to break it!

Ideally, the change you're testing should NOT be the one you were developing.

List of things to test:

• SAM @benITo47
• STT - test integration with VAD and CoreML export @barhanc
• TTS - test new languages @barhanc
• Streaming VAD @barhanc
• Qwen3.5 LLM @benITo47
• New Pose estimation API and model @benITo47
• New Privacy filter API and model @chmjkb
• Multilingual embeddings @chmjkb
• React Native Rag repo @msluszniak - Everything is ok, updated README.md and waiting for release of 0.9 to change pinned nighty version to 0.9 in this PR: chore: bump rne to 0.9.0 and migrate to models.* accessor software-mansion-labs/react-native-rag#19