Docs - Clarify mobile signing and testing tracks

[jernejk]

Summary

• Generalises the iOS signing troubleshooting runbook so it is usable by forks and not tied to one organisation.
• Links the deployment guide to both iOS certificate/profile issues and Android keystore/Play upload issues.
• Adds Android signing guidance for keystore metadata checks, Play App Signing, upload-key recovery, and the difference between internal/open/production tracks.
• Clarifies that the current Android workflow uploads to the Google Play internal track and that broader public testing or production needs a Play Console promotion or dedicated workflow.

References

• SSW Rules: https://www.ssw.com.au/rules/code-sign-and-notarize-apple-application/
• Apple CSR docs: https://developer.apple.com/help/account/certificates/create-a-certificate-signing-request/
• Android signing docs: https://developer.android.com/studio/publish/app-signing
• Google Play testing tracks: https://support.google.com/googleplay/android-developer/answer/9845334

Checks

• git diff --check
• Verified remaining SSW-specific hits are the requested SSW Rules reference or unrelated existing deployment sections.

[Copilot]

Pull request overview

Updates the deployment/beta-testing documentation to better distinguish mobile signing troubleshooting from release/promotion workflows, and to clarify Google Play testing tracks vs production release steps.

Changes:

• Adds iOS signing troubleshooting runbook and Android keystore/Play upload guidance to the deployment troubleshooting guide.
• Clarifies that the current Android workflow uploads to the Google Play internal testing track, and that broader testing/production requires Play Console promotion or a dedicated workflow.
• Cross-links deployment, troubleshooting, and beta testing docs for faster navigation when failures occur.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
_docs/Instructions-Deployment.md	Clarifies mobile pipeline upload targets and links to troubleshooting sections for iOS/Android signing issues.
_docs/Instructions-Deployment-Troubleshooting.md	Adds new detailed iOS certificate/profile rotation steps and Android keystore/Play track troubleshooting guidance.
_docs/Instructions-Beta-Testing.md	Updates beta testing flow and terminology to align with Play Console testing tracks and manual promotion steps.