fix(analytics, ios): reject getSessionId call if id is zero

[mikehardy]

Description

firebase-ios-sdk sometimes returns a zero session ID with a nil error, leading us to return zero as a session ID

I assert this is not a valid session ID so I'm going to reject for API callers in this case

Issue logged upstream

Detected in flake hammer parallel CI runs with a roughly 7% incidence in full e2e runs, example:

https://github.com/invertase/react-native-firebase/actions/runs/17225729926/job/48869796433#step:25:4846

Related issues

• FirebaseAnalytics sessionID / sessionIDWithCompletion returning 0 occasionally without error? firebase/firebase-ios-sdk#15258

Release Summary

single conventional commit ready for rebase

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • Yes
• My change supports the following platforms;
  • Android
  • iOS
  • Other (macOS, web)
• My change includes tests;
  • e2e tests added or updated in packages/\*\*/e2e
  • jest tests added or updated in packages/\*\*/__tests__
• I have updated TypeScript types that are affected by my change.
• This is a breaking change;
  • Yes
  • No

Test Plan

This issue was detected via e2e runs, manual iOS e2e workflow set to run 15 instances (so it ends up running 15x debug + release, for 30 total, expect 1-3 failures on this without the patch.

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Project	Deployment	Preview	Comments	Updated (UTC)
react-native-firebase	Ready	Preview	Comment	Aug 27, 2025 3:02pm