Implement Config Chaining

[khanayan123]

What does this PR do?

• Enhances configuration telemetry to capture data from all sources, sending updates only when changes occur.
• Adds a seq_id to each payload, allowing the backend to assume the configuration with the highest seq_id is the one in active use by the tracer.

Motivation

POC for configuration visibility.

Note:

Requires this PR to be merged in for the system tests to pass: DataDog/system-tests#4303

[github-actions]

Overall package size

Self size: 8.96 MB
Deduped: 101.5 MB
No deduping: 102.01 MB

Dependency sizes

| name | version | self size | total size | |------|---------|-----------|------------| | @datadog/libdatadog | 0.5.0 | 29.83 MB | 29.83 MB | | @datadog/native-appsec | 8.5.0 | 19.26 MB | 19.26 MB | | @datadog/native-iast-taint-tracking | 3.3.0 | 13.77 MB | 13.78 MB | | @datadog/pprof | 5.5.1 | 9.79 MB | 10.17 MB | | @opentelemetry/core | 1.30.1 | 908.66 kB | 7.16 MB | | protobufjs | 7.4.0 | 2.77 MB | 5.42 MB | | @datadog/native-iast-rewriter | 2.8.0 | 2.6 MB | 2.74 MB | | @datadog/native-metrics | 3.1.0 | 1.06 MB | 1.46 MB | | @opentelemetry/api | 1.8.0 | 1.21 MB | 1.21 MB | | import-in-the-middle | 1.13.1 | 117.64 kB | 839.26 kB | | source-map | 0.7.4 | 226 kB | 226 kB | | opentracing | 0.14.7 | 194.81 kB | 194.81 kB | | lru-cache | 7.18.3 | 133.92 kB | 133.92 kB | | pprof-format | 2.1.0 | 111.69 kB | 111.69 kB | | @datadog/sketches-js | 2.1.1 | 109.9 kB | 109.9 kB | | lodash.sortby | 4.7.0 | 75.76 kB | 75.76 kB | | ignore | 5.3.2 | 53.63 kB | 53.63 kB | | istanbul-lib-coverage | 3.2.0 | 29.34 kB | 29.34 kB | | rfdc | 1.4.1 | 27.15 kB | 27.15 kB | | @isaacs/ttlcache | 1.4.1 | 25.2 kB | 25.2 kB | | tlhunter-sorted-set | 0.1.0 | 24.94 kB | 24.94 kB | | dc-polyfill | 0.1.6 | 24.56 kB | 24.56 kB | | shell-quote | 1.8.2 | 23.54 kB | 23.54 kB | | limiter | 1.1.5 | 23.17 kB | 23.17 kB | | retry | 0.13.1 | 18.85 kB | 18.85 kB | | semifies | 1.0.0 | 15.84 kB | 15.84 kB | | jest-docblock | 29.7.0 | 8.99 kB | 12.76 kB | | crypto-randomuuid | 1.0.0 | 11.18 kB | 11.18 kB | | ttl-set | 1.0.0 | 4.61 kB | 9.69 kB | | path-to-regexp | 0.1.12 | 6.6 kB | 6.6 kB | | koalas | 1.0.2 | 6.47 kB | 6.47 kB | | module-details-from-path | 1.0.3 | 4.47 kB | 4.47 kB |

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.66%. Comparing base (cdaab0b) to head (7776d9c).
Report is 9 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5374      +/-   ##
==========================================
+ Coverage   80.65%   80.66%   +0.01%     
==========================================
  Files         491      492       +1     
  Lines       21976    22051      +75     
==========================================
+ Hits        17725    17788      +63     
- Misses       4251     4263      +12     

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[datadog-datadog-prod-us1]

Datadog Report

Branch report: khanayan123/implement-config-chaining
Commit report: 9afdedc
Test service: dd-trace-js-integration-tests

✅ 0 Failed, 805 Passed, 0 Skipped, 16m 34.44s Total Time

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-03-13 19:16:18

Comparing candidate commit 7776d9c in PR branch khanayan123/implement-config-chaining with baseline commit cdaab0b in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 916 metrics, 17 unstable metrics.