feat: add Salesforce POC with view tracking and e2e tests

[BeltranBulbarellaDD]

Motivation

Changes

Test instructions

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	179.27 KiB	180.04 KiB	+788 B	+0.43%	✅
Rum Profiler	6.16 KiB	6.16 KiB	0 B	0.00%	✅
Rum Recorder	27.03 KiB	27.03 KiB	0 B	0.00%	✅
Logs	56.65 KiB	57.02 KiB	+384 B	+0.66%	✅
Rum Slim	135.11 KiB	135.86 KiB	+766 B	+0.55%	✅
Worker	23.63 KiB	23.63 KiB	0 B	0.00%	✅

🚀 CPU Performance

Pending...

🧠 Memory Performance

Pending...

🔗 RealWorld

[datadog-prod-us1-6]

✨ Fix all issues with BitsAI or with Cursor

⚠️ Warnings

🧪 3 Tests failed

salesforce view tracker replaces the pending loading time candidate when a later resource is detected from Chrome Headless 146.0.0.0 (Linux 0.0.0)     (Fix with Cursor)

Expected spy unknown to have been called only once, and with given args:
  [  ]
But it was never called.


Error: Expected spy unknown to have been called only once, and with given args:
  [  ]
But it was never called.
    at <Jasmine>
    at UserContext.<anonymous> (/go/src/github.com/DataDog/browser-sdk/packages/rum/src/domain/salesforce/viewTracker.spec.ts:155:32 <- /tmp/_karma_webpack_740222/commons.js:437912:36)
...

salesforce view tracker resets the resource timing state when a new Salesforce view starts from Chrome Headless 146.0.0.0 (Linux 0.0.0)     (Fix with Cursor)

Error: Expected spy unknown to have been called 2 times. It was called 0 times.
    at <Jasmine>
    at UserContext.<anonymous> (/go/src/github.com/DataDog/browser-sdk/packages/rum/src/domain/salesforce/viewTracker.spec.ts:184:32 <- /tmp/_karma_webpack_740222/commons.js:437934:36)
    at <Jasmine>

salesforce view tracker sets the view loading time after one idle polling interval from Chrome Headless 146.0.0.0 (Linux 0.0.0)     (Fix with Cursor)

Expected spy unknown to have been called only once, and with given args:
  [  ]
But it was never called.


Error: Expected spy unknown to have been called only once, and with given args:
  [  ]
But it was never called.
    at <Jasmine>
    at UserContext.<anonymous> (/go/src/github.com/DataDog/browser-sdk/packages/rum/src/domain/salesforce/viewTracker.spec.ts:134:32 <- /tmp/_karma_webpack_740222/commons.js:437897:36)
...

ℹ️ Info

No other issues found (see more)

❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 61.34%
• Overall Coverage: 76.48% (-0.53%)

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