feat(ws): add websocket context propagation

[tlhunter]

What does this PR do?

• adds context propagation for websocket messages sent using the ws package

Motivation

• feature parity with the other tracers
• spec

[github-actions[bot]]

Overall package size

Self size: 4.36 MB Deduped: 5.19 MB No deduping: 5.19 MB

Dependency sizes

| name | version | self size | total size | |------|---------|-----------|------------| | import-in-the-middle | 2.0.0 | 68.46 kB | 797.03 kB | | dc-polyfill | 0.1.10 | 26.73 kB | 26.73 kB |

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[codecov[bot]]

Codecov Report

:x: Patch coverage is 82.05128% with 14 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 84.77%. Comparing base (d9a3a8e) to head (fc06332). :warning: Report is 7 commits behind head on master.

Files with missing lines	Patch %	Lines
packages/datadog-plugin-ws/src/close.js	47.61%	11 Missing :warning:
packages/datadog-plugin-ws/src/util.js	86.95%	3 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7077      +/-   ##
==========================================
- Coverage   84.78%   84.77%   -0.02%     
==========================================
  Files         521      522       +1     
  Lines       22155    22232      +77     
==========================================
+ Hits        18785    18848      +63     
- Misses       3370     3384      +14     

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[pr-commenter[bot]]

Benchmarks

Benchmark execution time: 2025-12-18 16:57:21

Comparing candidate commit fc063329d425782ac852d024e6508b19a862556a in PR branch tlhunter/websocket-context-propagation with baseline commit d9a3a8ee81030b06c173a431f6e57407b8039e58 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 290 metrics, 30 unstable metrics.

[datadog-datadog-prod-us1[bot]]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

_{This comment will be updated automatically if new data arrives.
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