feat(co): add in-product enablement support

[P403n1x87]

We add support for in-product enablement to code origin for spans.

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions]

CODEOWNERS have been resolved as:

releasenotes/notes/feat-co-in-product-enablement-6b70fc52d62721fa.yaml  @DataDog/apm-python
ddtrace/debugging/_products/code_origin/span.py                         @DataDog/debugger-python

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 278 ± 2 ms.

The average import time from base is: 278 ± 2 ms.

The import time difference between this PR and base is: -0.4 ± 0.09 ms.

Import time breakdown

The following import paths have grown:

ddtrace.auto 0.679 ms (0.24%)

ddtrace.bootstrap.sitecustomize 0.679 ms (0.24%)

ddtrace.bootstrap.preload 0.626 ms (0.23%)

ddtrace.debugging._import 0.068 ms (0.02%)

ddtrace._trace.trace_handlers 0.053 ms (0.02%)

The following import paths have shrunk:

ddtrace.auto 1.525 ms (0.55%)

ddtrace.bootstrap.sitecustomize 0.852 ms (0.31%)

ddtrace.bootstrap.preload 0.728 ms (0.26%)

ddtrace.internal.remoteconfig.client 0.655 ms (0.24%)

ddtrace.debugging._import 0.073 ms (0.03%)

ddtrace.debugging._function.discovery 0.073 ms (0.03%)

ddtrace._trace.trace_handlers 0.039 ms (0.01%)

ddtrace._trace._inferred_proxy 0.039 ms (0.01%)

ddtrace 0.673 ms (0.24%)

ddtrace.internal._unpatched 0.030 ms (0.01%)

json 0.030 ms (0.01%)

json.decoder 0.030 ms (0.01%)

re 0.030 ms (0.01%)

enum 0.030 ms (0.01%)

types 0.030 ms (0.01%)

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-07-07 10:38:20

Comparing candidate commit d861785 in PR branch feat/co-in-product-enablement with baseline commit a8419a4 in branch main.

Found 0 performance improvements and 1 performance regressions! Performance is the same for 524 metrics, 3 unstable metrics.

scenario:iastaspectsospath-ospathsplit_aspect

• 🟥 execution_time [+915.183ns; +1061.981ns] or [+18.753%; +21.761%]

[tylfin]

I think in-product enablement should only enable entry spans so this might be blocked by #13593.