#141865 [Benefits Management Tools] [Team 2] Add cstLettersContentUpdates flag to AuthorizedServicesData.ts and change the default value in the remote config to true

[JoshingYou1]

Description of Change

1. Adds cstLettersContentUpdates feature flag to AuthorizedServicesData.tsx
2. Updates cstLettersContentUpdates in VAMobile/src/constants/featureFlags.ts to default to true
3. Updates test code to reflect the changes.

Target Release Date

N/A

Link to Issue

Closes #141865

Code testing

• Unit tests have been created or updated to cover this change
• End to end (Detox) tests have been added or updated as needed

Pre-QA Artifacts

Include all artifacts or select not applicable and explain below.

• Screenshots or screen recording at factory default settings (before and after, if applicable) in portrait orientation
• Screenshots in landscape orientation
• Screenshots at 2x text size
• Screen recording of interaction using VoiceOver (iOS) and/or TalkBack (Android)
• Visual artifacts not applicable to this PR (explain why below)

Flag defaults to "on"

How to capture these

Screenshots & Video

• Capturing screenshots and videos from Simulator, iOS
• Take screenshots on the Emulator, Android

2x text size

• iOS Dynamic Type: Settings > Accessibility > Display & Text Size > Larger Text. Toggle ON, move slider.
• Android Font Scale: Settings > Accessibility > Display size and text. Adjust Font size and Display size sliders.

VoiceOver / TalkBack (best on actual hardware)

• iOS: Turn on VoiceOver · Screen recording / QuickTime from Mac
• Android: Turn on TalkBack / SCRCPY for desktop capture

Test Context for QA

How does a user get here?

Feature Flags

Risk Assessment:

• Low (UI polish, copy change, isolated component)
• Medium (New feature, non-core path)
• High (Changes to Core Features: Login, Claims, Rx, Secure Messaging, major updates to a backend service, etc.)

What should QA pay extra attention to?
Ensure the cstLettersContentUpdates flag defaults to true

Test Review
Updated some test user code as well as the test code for the feature flag and it's default value.

Test User(s)

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Checklist for QA

QA Engineer: Check off the items below as you test

• Shared Test Script executed (post results as a PR comment)
• Feature-specific verification based on QA Test Context above
• Tested on iOS
• Tested on Android

Run a build for this branch

[Copilot]

Pull request overview

Adds support for the cstLettersContentUpdates flag across authorized-services typings and demo-mode mocks, and flips the Firebase Remote Config default to enabled so the feature is “on” by default.

Changes:

• Added cstLettersContentUpdates to the AuthorizedServicesPayload / UserAuthorizedServicesData TypeScript types.
• Updated demo-mode getAuthorizedServices mocks to include the new cstLettersContentUpdates field.
• Changed the Remote Config default for cstLettersContentUpdates to true.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
VAMobile/src/store/api/demo/mocks/kimberlyWashington/getAuthorizedServices.json	Adds cstLettersContentUpdates to demo authorized-services response.
VAMobile/src/store/api/demo/mocks/kimberlyForOHMigration/getAuthorizedServicesNoErrorPhases.json	Adds cstLettersContentUpdates to the OH-migration demo authorized-services response.
VAMobile/src/store/api/demo/mocks/kimberlyForOHMigration/getAuthorizedServices.json	Adds cstLettersContentUpdates to the OH-migration demo authorized-services response.
VAMobile/src/store/api/demo/mocks/dennisMadison/getAuthorizedServices.json	Adds cstLettersContentUpdates to demo authorized-services response.
VAMobile/src/store/api/demo/mocks/default/getAuthorizedServices.json	Adds cstLettersContentUpdates to the default demo authorized-services response.
VAMobile/src/store/api/demo/mocks/claraJefferson/getAuthorizedServices.json	Adds cstLettersContentUpdates to the claraJefferson demo authorized-services response.
VAMobile/src/constants/featureFlags.ts	Sets Remote Config default cstLettersContentUpdates to true.
VAMobile/src/api/types/AuthorizedServicesData.ts	Adds cstLettersContentUpdates to authorized-services payload/user types.

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[lianafleming]

lgtm!

[dumathane]

Need to resolve some conflicts.