Add @datadog/browser-rum-angular package with Angular Router integration

[rgaignault]

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	174.53 KiB	174.53 KiB	0 B	0.00%	✅
Rum Profiler	6.16 KiB	6.16 KiB	0 B	0.00%	✅
Rum Recorder	27.46 KiB	27.46 KiB	0 B	0.00%	✅
Logs	56.84 KiB	56.84 KiB	0 B	0.00%	✅
Flagging	944 B	944 B	0 B	0.00%	✅
Rum Slim	130.21 KiB	130.21 KiB	0 B	0.00%	✅
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	0.0047	0.004	-14.89%
RUM - add action	0.0183	0.0135	-26.23%
RUM - add error	0.0147	0.0189	+28.57%
RUM - add timing	0.0032	0.0043	+34.37%
RUM - start view	0.0134	0.0181	+35.07%
RUM - start/stop session replay recording	0.0008	0.0008	0.00%
Logs - log message	0.0197	0.0212	+7.61%

🧠 Memory Performance

Action Name	Base Memory Consumption	Local Memory Consumption	𝚫
RUM - add global context	26.88 KiB	26.09 KiB	-811 B
RUM - add action	51.21 KiB	52.09 KiB	+907 B
RUM - add timing	26.72 KiB	27.77 KiB	+1.05 KiB
RUM - add error	56.25 KiB	53.30 KiB	-2.95 KiB
RUM - start/stop session replay recording	25.88 KiB	25.89 KiB	+11 B
RUM - start view	452.02 KiB	454.50 KiB	+2.48 KiB
Logs - log message	45.00 KiB	45.02 KiB	+19 B

🔗 RealWorld

[datadog-datadog-prod-us1-2]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

🎯 Code Coverage (details)
• Patch Coverage: 75.86%
• Overall Coverage: 77.16% (-0.02%)

_{This comment will be updated automatically if new data arrives.
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[chatgpt-codex-connector]

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