[gi11es]

Description

A finite total_timeout runs the request in a task that loses the caller’s process-local OpenTelemetry context. Capture that context before spawning the task and attach it before running the request, preserving parent trace selection and baggage. OpenTelemetry remains optional at runtime.

Regression tests use the real context API through a test-only dependency and cover finite/unlimited budgets, an empty context, and isolation of task changes across successive requests.

Type of Change

• Bug fix (non-breaking)

Breaking Changes

None.

Testing

• mix test: 5,416 passed, 11 skipped, 240 excluded by default.
• mix quality: formatting, warnings-as-errors compilation, Credo, Dialyzer passed.
• Two focused regressions fail before the fix; all nine focused tests pass after it, including three additional seeded runs.
• Finite and unlimited requests succeed with OpenTelemetry absent in a separate dev run.

Checklist

• Code follows project style guidelines.
• Documentation reviewed; no public API or configuration change.
• Added regression tests.
• Default test suite passes.
• One conventional commit.
• CHANGELOG.md unchanged.

Related Issues

Closes #1148.

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