media: measure how long the SFU WebSocket stays open after going offline

[pnts-se-whereby]

Description

Summary:

Adds internal telemetry measuring how long the SFU WebSocket stays open after the browser reports the network is offline, until it closes — as counters on the analytics event and as rtcstats events. No behavioral change.

Related Issue:

Testing

Screenshots/GIFs (if applicable)

Checklist

• My code follows the project's coding standards.
• Prefixed the PR title and commit messages with the service or package name
• I have written unit tests (if applicable).
• I have updated the documentation (if applicable).
• By submitting this pull request, I confirm that my contribution is made
  under the terms of the MIT license.

Additional Information

[changeset-bot]

🦋 Changeset detected

Latest commit: db6021d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 6 packages

Name	Type
@whereby.com/media	Patch
@whereby.com/audio-denoiser	Patch
@whereby.com/browser-sdk	Patch
@whereby.com/core	Patch
@whereby.com/assistant-sdk	Patch
@whereby.com/react-native-sdk	Patch

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[pnts-se-whereby]

/canary

[github-actions]

🚀 The canary releases have been published to npm.

You can test the releases by installing the newly published versions:

pnpm add @whereby.com/assistant-sdk@0.0.0-canary-20260630050847

pnpm add @whereby.com/audio-denoiser@0.0.0-canary-20260630050847

pnpm add @whereby.com/browser-sdk@0.0.0-canary-20260630050847

pnpm add @whereby.com/core@0.0.0-canary-20260630050847

pnpm add @whereby.com/media@0.0.0-canary-20260630050847

pnpm add @whereby.com/react-native-sdk@0.0.0-canary-20260630050847