refactor(app-dist)!: migrate to TypeScript

[MichaelVerdon]

Description

Related issues

Release Summary

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

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Project	Deployment	Actions	Updated (UTC)
react-native-firebase	Ready	Preview, Comment	Mar 3, 2026 2:03pm

[russellwheatley]

Looking good so far, @MichaelVerdon 👍

[github-actions]

Hello 👋, this PR has been opened for more than 14 days with no activity on it.

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[russellwheatley]

Also need to reinstate index.d.ts and call it namespaced.ts. Namespaced should use namespaced types. Also need to deprecate all api on it. See storage types/namespaced.ts: https://github.com/invertase/react-native-firebase/pull/8824/changes#diff-fd5d9fcbc03d8f4891bacac55f4e1f793eb5c1c95a5acdb6ad85f1bbd14ee205R15-R1248

[russellwheatley]

getting there!