[APPS] Stop exposing raw index.html standalone URL

[sdkennedy2]

Motivation

After uploading a high-code app, the apps plugin was logging two URLs: a raw index.html standalone URL and the AppBuilder URL. We don't want users to rely on the raw index.html because backend functions won't work when the app is loaded that way — backend functions rely on a postMessage bridge to the parent Datadog document, which only exists when the app is rendered inside AppBuilder. Pointing customers at the standalone URL leads them into a broken state.

Changes

Dropped the Standalone URL from the post-upload log message. The log now only surfaces the AppBuilder URL, which is the only supported way to run these apps.

Before:

Your application is available at:
Standalone :
  https://api.datadoghq.com/api/unstable/app-builder-code/apps/serve/<app>/v/<version>/index.html
AppBuilder :
  https://app.datadoghq.com/app-builder/apps/<id>

After:

Your application is available at:
  https://app.datadoghq.com/app-builder/apps/<id>

QA Instructions

• Run an apps plugin upload against a test app and confirm the post-upload log only shows the AppBuilder URL, with no Standalone URL.
• Unit: yarn test:unit packages/plugins/apps/src/upload.test.ts — the existing Your application is available at assertion still passes.

Blast Radius

• Scoped to the apps plugin post-upload log output. No functional behavior changes — the standalone endpoint still exists, we just no longer advertise it to customers.

Documentation

• How to reliably make frontend production changes
• PR Description Guidelines
• Deploy steps

[sdkennedy2]

• [APPS] Stop exposing raw index.html standalone URL #329 : 2 dependent PRs (#330 , #338 ) 👈 (View in Graphite)
• master

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[sdkennedy2]

@codex review
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[chatgpt-codex-connector]

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