🐛 Report CDN bundles as CDN SDK setup

[BenoitZugmeyer]

Motivation

Telemetry emitted by CDN bundles currently reports sdk_setup: "npm". This makes it difficult to accurately understand how customers install and use the Browser SDK.

CDN bundles should report sdk_setup: "cdn", while npm builds should continue reporting sdk_setup: "npm".

Changes

• Report the correct SDK setup for CDN and npm builds.
• Simplify the build environment configuration and make build-specific values explicit.

Test instructions

1. Run yarn build:bundle.
2. Run rg -o 'sdk_setup.{6}' packages/*/bundle/*.js.
3. Confirm that CDN bundles report sdk_setup:"cdn".

Checklist

• Tested locally
• Tested on staging
• Added unit tests for this change.
• Added e2e/integration tests for this change.
• Updated documentation and/or relevant AGENTS.md file

[cit-pr-commenter-54b7da]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	180.61 KiB	180.61 KiB	0 B	0.00%	✅
Rum Profiler	8.43 KiB	8.43 KiB	0 B	0.00%	✅
Rum Recorder	21.12 KiB	21.12 KiB	0 B	0.00%	✅
Logs	57.05 KiB	57.05 KiB	0 B	0.00%	✅
Rum Salesforce	N/A	138.49 KiB	N/A	N/A	N/A
Rum Slim	138.49 KiB	138.49 KiB	0 B	0.00%	✅
Worker	22.96 KiB	22.96 KiB	0 B	0.00%	✅
Rum Shopify	N/A	200.18 KiB	N/A	N/A	N/A
Rum-shopify Profiler	N/A	8.43 KiB	N/A	N/A	N/A
Rum-shopify Recorder	N/A	3.72 KiB	N/A	N/A	N/A

[datadog-official]

🎉 All green!

🧪 All tests passed
❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 77.15% (-0.06%)

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 88a12db | Docs | Datadog PR Page | Give us feedback!}

[gogusarov]

suggestion

having additional assertions in telemetry.scenario.ts that would check telemetry.sdk_setup === 'cdn'/'npm' would be really nice

[BenoitZugmeyer]

🤖 Added explicit npm and CDN telemetry setup assertions; this will be included in the next push.

[gogusarov]

suggestion

it looks like includeWorkerString should be added here as well because otherwise it would cause ReferenceError in createDeflateWorker

[chatgpt-codex-connector]

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