⚗️ Add beta feature for encoding cookie options

[thomas-lebeau]

Motivation

Introduced a new configuration option betaEncodeCookieOptions to enable encoding of cookie options, aimed at mitigating microssession issues. Updated relevant files to support this feature, including configuration interfaces, session management, and tests. Also added "Beta" category to typedoc.json for documentation purposes.

Changes

Test instructions

Checklist

• Tested locally
• Tested on staging
• Added unit tests for this change.
• Added e2e/integration tests for this change.

[datadog-official]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

🎯 Code Coverage
• Patch Coverage: 75.00%
• Total Coverage: 92.63% (-0.00%)

View detailed report

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[cit-pr-commenter]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	163.83 KiB	163.92 KiB	+95 B	+0.06%	✅
Rum Recorder	19.78 KiB	19.78 KiB	0 B	0.00%	✅
Rum Profiler	4.84 KiB	4.84 KiB	0 B	0.00%	✅
Logs	56.34 KiB	56.39 KiB	+57 B	+0.10%	✅
Flagging	944 B	944 B	0 B	0.00%	✅
Rum Slim	121.08 KiB	121.19 KiB	+110 B	+0.09%	✅
Worker	23.63 KiB	23.63 KiB	0 B	0.00%	✅

🚀 CPU Performance

Action Name	Base CPU Time (ms)	Local CPU Time (ms)	𝚫%
RUM - add global context	0.0049	0.0041	-16.33%
RUM - add action	0.0151	0.0119	-21.19%
RUM - add error	0.0163	0.0139	-14.72%
RUM - add timing	0.0032	0.0032	0.00%
RUM - start view	0.0039	0.0034	-12.82%
RUM - start/stop session replay recording	0.0008	0.0007	-12.50%
Logs - log message	0.0171	0.0134	-21.64%

🧠 Memory Performance

Action Name	Base Memory Consumption	Local Memory Consumption	𝚫
RUM - add global context	24.75 KiB	25.50 KiB	+764 B
RUM - add action	51.99 KiB	48.20 KiB	-3.79 KiB
RUM - add timing	25.65 KiB	24.50 KiB	-1.15 KiB
RUM - add error	51.52 KiB	53.73 KiB	+2.21 KiB
RUM - start/stop session replay recording	23.86 KiB	23.98 KiB	+121 B
RUM - start view	422.31 KiB	427.61 KiB	+5.31 KiB
logmessage	N/A	43.55 KiB	N/A

🔗 RealWorld