Add auth v2 feature flag for windows

[deanmalone]

Asana Task/Github Issue: https://app.asana.com/0/1205044477659400/1209198997570829

Description

This PR adds the feature flag authApiV2 to control Auth API v2 rollout on the Windows browser for the Privacy Pro feature. It is disabled by default.

Feature change process:

• I have added a schema to validate this feature change
• I have tested this change locally
• This code for the config change is ready to merge
• This feature was covered by a tech design

Additional info:

• I have tested this change locally in all supported browsers
• This change will be visible to users
• This code for the config change is ready
• This change was covered by a ship review

Site breakage mitigation process:

Brief explanation

• Reported URL:

• Problems experienced:

• Platforms affected:

  • iOS
  • Android
  • Windows
  • MacOS
  • Extensions

• Tracker(s) being unblocked:

• Feature being disabled:

• I have referenced the URL of this PR as the "reason" value for the exception (where applicable).

• This change is a speculative mitigation to fix reported breakage.

Reference

• Config Reviewer Documentation
• Config Maintainer Documentation
• Feature Implementer Documentation

[github-actions]

Don't forget to add an individual reviewer (in addition to those already added, this should create a task for them in Asana).
- The best reviewer is most likely a feature or platform owner.
- If they've got permission to approve, you're good to merge. See CODEOWNERS
- As a fallback the Global owners are:
- Breakage AOR
- Breakage triagers
- Config AOR
Please mark this as draft unless there's intention to merge this.
Click the "Merge When Ready" if you're happy for this to automatically get merged once reviewed.
- If the option isn't available to you; ensure you've signed into DuckDuckGo oauth.
Also don't forget to add schema changes to validate if you're adding/changing a feature.

• Config Reviewer Documentation
• Config Maintainer Documentation
• Feature Implementer Documentation

[github-actions]

Generated file outputs:

Time updated: Fri, 07 Feb 2025 08:27:33 GMT

legacy

trackers-unprotected-temporary.txt (13 more)

• trackers-unprotected-temporary.txt
• v3/android-config.json
• v3/extension-brave-config.json
• v3/extension-bravemv3-config.json
• v3/extension-chrome-config.json
• v3/extension-chromemv3-config.json
• v3/extension-config.json
• v3/extension-edg-config.json
• v3/extension-edge-config.json
• v3/extension-edgmv3-config.json
• v3/extension-firefox-config.json
• v3/extension-safarimv3-config.json
• v3/ios-config.json
• v3/macos-config.json

⚠️ File is identical

v3/windows-config.json

--- v3/windows-config.json
+++ v3/windows-config.json
@@ -6666,8 +6666,11 @@
                     "state": "enabled"
                 },
                 "useUnifiedFeedback": {
                     "state": "enabled"
+                },
+                "authApiV2": {
+                    "state": "disabled"
                 }
             }
         },
         "privacyProtectionsPopup": {

latest

v4/android-config.json (12 more)

• v4/android-config.json
• v4/extension-brave-config.json
• v4/extension-bravemv3-config.json
• v4/extension-chrome-config.json
• v4/extension-chromemv3-config.json
• v4/extension-config.json
• v4/extension-edg-config.json
• v4/extension-edge-config.json
• v4/extension-edgmv3-config.json
• v4/extension-firefox-config.json
• v4/extension-safarimv3-config.json
• v4/ios-config.json
• v4/macos-config.json

⚠️ File is identical

v4/windows-config.json

--- v4/windows-config.json
+++ v4/windows-config.json
@@ -6158,8 +6158,11 @@
                     "state": "enabled"
                 },
                 "useUnifiedFeedback": {
                     "state": "enabled"
+                },
+                "authApiV2": {
+                    "state": "disabled"
                 }
             }
         },
         "privacyProtectionsPopup": {