Add Cloudflare Turnstile Support

[brianhall]

Asana Task/Github Issue: https://app.asana.com/1/137249556945/project/72649045549333/task/1209329834965899?focus=true

Description

Adds CloudFlare Turnstile solving to PIR.

Testing Steps

• See Asana

Checklist

Please tick all that apply:

• I have tested this change locally
• I have tested this change locally in all supported browsers
• This change will be visible to users
• I have added automated tests that cover this change
• I have ensured the change is gated by config
• This change was covered by a ship review
• This change was covered by a tech design
• Any dependent config has been merged

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[github-actions]

Temporary Branch Update

The temporary branch has been updated with the latest changes. Below are the details:

• Branch Name: pr-releases/pr-1633
• Commit Hash: e010087524dd45321999be6c742ff09c70c20def
• Last Updated: April 22, 2025 at 2:42:35 PM UTC
• Install Command: npm i github:duckduckgo/content-scope-scripts#e010087524dd45321999be6c742ff09c70c20def

Please use the above install command to update to the latest version.

[github-actions]

[Beta] Generated file diff

Time updated: Tue, 22 Apr 2025 14:42:51 GMT

Android

    - android/brokerProtection.js

File has changed

Integration

    - integration/contentScope.js

File has changed

Windows

    - windows/contentScope.js

File has changed

Apple

    - dist/contentScopeIsolated.js

File has changed

[madblex]

LGTM generally, very nicely done! 👏

Just one comment I'd like to get addressed: #1633 (comment), the rest are suggestions / nit.

Holding off approval until e2e testing is done successfully!

[madblex]

LGTM!