New test analytics doc for docs.sentry

[sfanahata]

DESCRIBE YOUR PR

Sentry Prevent is adding in Test Analytics to our product.

IS YOUR CHANGE URGENT?

Help us prioritize incoming PRs by letting us know when the change needs to go live.

• Urgent deadline (GA date, etc.):
• Other deadline: July 15
• None: Not urgent, can wait up to 1 week+

SLA

• Teamwork makes the dream work, so please add a reviewer to your PRs.
• Please give the docs team up to 1 week to review your PR unless you've added an urgent due date to it.
  Thanks in advance for your help!

PRE-MERGE CHECKLIST

Make sure you've checked the following before merging your changes:

• Checked Vercel preview for correctness, including links
• PR was reviewed and approved by any necessary SMEs (subject matter experts)
• PR was reviewed and approved by a member of the Sentry docs team

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
sentry-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 9, 2025 0:44am

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
develop-docs	⬜️ Ignored (Inspect)	Visit Preview		Jul 9, 2025 0:44am

[codecov]

Bundle Report

Changes will increase total bundle size by 1.59kB (0.01%) ⬆️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sentry-docs-client-array-push	9.81MB	-6 bytes (-0.0%) ⬇️
sentry-docs-server-cjs	11.88MB	1.6kB (0.01%) ⬆️

Affected Assets, Files, and Routes:

view changes for bundle: sentry-docs-client-array-push

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
static/chunks/pages/_app-*.js	-3 bytes	878.27kB	-0.0%
static/chunks/1831-*.js	-3 bytes	421.22kB	-0.0%
server/middleware-*.js	-5.55kB	1.0kB	-84.74%
server/middleware-*.js	5.55kB	6.55kB	555.3% ⚠️
static/E63NzBR8i2uqMDxTswRv7/_buildManifest.js (New)	684 bytes	684 bytes	100.0% 🚀
static/E63NzBR8i2uqMDxTswRv7/_ssgManifest.js (New)	77 bytes	77 bytes	100.0% 🚀
static/fmn_tuxAFm3z8NNralB7c/_buildManifest.js (Deleted)	-684 bytes	0 bytes	-100.0% 🗑️
static/fmn_tuxAFm3z8NNralB7c/_ssgManifest.js (Deleted)	-77 bytes	0 bytes	-100.0% 🗑️

view changes for bundle: sentry-docs-server-cjs

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
1729.js	-3 bytes	1.67MB	-0.0%
../instrumentation.js	-3 bytes	997.28kB	-0.0%
9523.js	-3 bytes	973.22kB	-0.0%
../app/[[...path]]/page.js.nft.json	535 bytes	694.93kB	0.08%
../app/platform-redirect/page.js.nft.json	535 bytes	694.84kB	0.08%
../app/sitemap.xml/route.js.nft.json	535 bytes	692.81kB	0.08%

[coolguyzone]

I went ahead and set this to draft since it looks like there's still some design assets to be added.