Use tdbr claim to route telemetry traffic to EU region, Fixes AB#3200872

[fadidurah]

Introduce Tracking for a new TDBR Claim that ESTS will send as part of ClientInfo to denote EU Home tenants, then fetch the claim to route telemetry to EU when applicable. This will be used to better comply with European Data laws

AB#3200872

[github-actions]

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[Copilot]

Pull Request Overview

This PR adds support for persisting and tracking the telemetry region (TDBR claim) by tenant across the Android platform layers.

• Defines a new storeTelemetryRegionByTenant API in IPlatformUtil and implements it in AndroidPlatformUtil
• Extends ClientInfo to parse and expose the TDBR claim
• Hooks into broker flows in BrokerMsalController to extract, persist, and attach region telemetry

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
common4j/src/main/com/microsoft/identity/common/java/util/IPlatformUtil.java	Added storeTelemetryRegionByTenant method signature
common4j/src/main/com/microsoft/identity/common/java/providers/microsoft/azureactivedirectory/ClientInfo.java	Introduced TDBR_CLAIM constant, field, constructor parsing, and getter
common4j/src/main/com/microsoft/identity/common/java/opentelemetry/AttributeName.java	Added tenant_id enum entry
common/src/main/java/com/microsoft/identity/common/internal/platform/AndroidPlatformUtil.java	Implemented storeTelemetryRegionByTenant logic and span tagging
common/src/main/java/com/microsoft/identity/common/internal/controllers/BrokerMsalController.java	Integrated trackTelemetryRegionFromResultBundle into broker flows and initial save

Comments suppressed due to low confidence (2)

common/src/main/java/com/microsoft/identity/common/internal/controllers/BrokerMsalController.java:1430

• The new trackTelemetryRegionFromResultBundle method contains multiple branches (success, missing clientInfo, exception path) but lacks dedicated unit tests. Consider adding tests to cover each branch.

    private void trackTelemetryRegionFromResultBundle(@NonNull final Bundle resultBundle) throws BaseException {

common/src/main/java/com/microsoft/identity/common/internal/controllers/BrokerMsalController.java:620

• Calling trackTelemetryRegionFromResultBundle, which declares throws BaseException, inside extractResultBundle (which likely doesn't declare this exception) can lead to a compile error or unintended exception propagation. Wrap this call in a try-catch or adjust the method signature to handle the exception explicitly.

                            trackTelemetryRegionFromResultBundle(resultBundle);

[github-actions]

✅ Work item link check complete. Description contains link AB#3200872 to an Azure Boards work item.