local VAD implementation

[Magmusacy]

Description

Added local VAD implementation that shows whether local peer is talking or not. I added useLocalVAD hook that is being called in useVAD and displays the VAD on local peer depending on whether he's present in PeerIDs array

Motivation and Context

This change was requested by our client

Documentation impact

• Documentation update required
• Documentation updated in another PR
• No documentation update required

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to
  not work as expected)

[linear]

FCE-3021 useVAD should emit events for local peer

[Copilot]

Pull request overview

Adds client-side (local) voice activity detection (VAD) by exposing a local track audio level API from the WebRTC layer up to the React hook layer, and updates the mobile example UI to highlight active speakers.

Changes:

• Expose getLocalTrackAudioLevel(trackId) from webrtc-client → ts-client for consumers.
• Add useLocalVAD and integrate it into useVAD to report speaking state for the local peer when included in peerIds.
• Update the mobile chat example to use useVAD and visually indicate speaking peers.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
packages/webrtc-client/src/webRTCEndpoint.ts	Adds a public method to fetch local track audio level via the local track manager.
packages/webrtc-client/src/tracks/LocalTrack.ts	Implements getAudioLevel() by reading RTCRtpSender.getStats() for audio-level stats.
packages/webrtc-client/src/tracks/Local.ts	Wires getLocalTrackAudioLevel() to look up the local track and query its audio level.
packages/ts-client/src/FishjamClient.ts	Exposes getLocalTrackAudioLevel() to SDK users (via internal webrtc endpoint).
packages/react-client/src/hooks/useVAD.ts	Integrates local VAD into the existing VAD hook and adjusts mic-track selection.
packages/react-client/src/hooks/useLocalVAD.ts	New polling-based local VAD hook using the local microphone track’s audio level.
examples/mobile-client/fishjam-chat/components/VideosGrid.tsx	Uses useVAD and adds a speaking indicator border in the example UI.
examples/mobile-client/fishjam-chat/app.json	Adds iOS entitlements and a hard-coded Apple Team ID for the example app.

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 4 comments.

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 1 comment.

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 6 comments.

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

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[MiloszFilimowski]

Great work! Just few more questions.

[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 3 comments.

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 1 comment.

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[MiloszFilimowski]

Great work!