[RUM-6075] Test anonymous id on staging behind ff

[cy-moi]

Motivation

Add device id as anonymous id in session cookie behind a feature flag.

Changes

Maintain anonymous id when session expires.
Extend cookie age.

Testing

Same as previous PR. Already tested on staging.

• Local
• Staging
• Unit
• End to end

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I have gone over the contributing documentation.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.44%. Comparing base (50b1073) to head (8961671).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3206      +/-   ##
==========================================
+ Coverage   93.43%   93.44%   +0.01%     
==========================================
  Files         282      283       +1     
  Lines        7721     7740      +19     
  Branches     1732     1744      +12     
==========================================
+ Hits         7214     7233      +19     
  Misses        507      507              

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[cit-pr-commenter]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	162.38 KiB	162.90 KiB	539 B	+0.32%	✅
Logs	55.84 KiB	56.30 KiB	470 B	+0.82%	✅
Rum Slim	110.96 KiB	111.49 KiB	539 B	+0.47%	✅
Worker	25.21 KiB	25.21 KiB	0 B	0.00%	✅

🚀 CPU Performance

Action Name	Base Average Cpu Time (ms)	Local Average Cpu Time (ms)	𝚫
addglobalcontext	0.001	0.002	0.001
addaction	0.030	0.046	0.016
addtiming	0.001	0.001	0.000
adderror	0.032	0.051	0.018
startstopsessionreplayrecording	0.907	1.047	0.140
startview	0.965	0.484	-0.481
logmessage	0.019	0.024	0.005

🧠 Memory Performance

Action Name	Base Consumption Memory (bytes)	Local Consumption Memory (bytes)	𝚫 (bytes)
addglobalcontext	7.79 KiB	7.14 KiB	-668 B
addaction	38.73 KiB	38.33 KiB	-402 B
addtiming	7.65 KiB	6.34 KiB	-1341 B
adderror	45.50 KiB	43.42 KiB	-2122 B
startstopsessionreplayrecording	5.36 KiB	5.60 KiB	249 B
startview	420.91 KiB	426.62 KiB	5.71 KiB
logmessage	41.71 KiB	41.10 KiB	-617 B

🔗 RealWorld

[cy-moi]

/to-staging

[dd-devflow]

Devflow running: /to-staging

View all feedbacks in Devflow UI.

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2024-12-11 12:56:15 UTC ℹ️ Branch Integration: starting soon, median merge time is 9m53s

Commit 896167162e will soon be integrated into staging-50.

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2024-12-11 13:08:02 UTC ℹ️ Branch Integration: This commit was successfully integrated

Commit 896167162e has been merged into staging-50 in merge commit f817a05451.

Check out the triggered pipeline on Gitlab 🦊