fix(instrumentation-js): repair OpenAI Agents and OpenRouter OTel 2.x spans

[Nightingalelyy]

Summary

• map noncanonical OpenAI Agents trace/span IDs to deterministic full-width OTel IDs, preserve trace grouping/marker context, expose agent tool/handoff/output configuration in canonical metadata, and source the instrumentation version from the package manifest
• apply the OpenRouter package instrumentation scope to chat and embedding spans and preserve embedding vectors in canonical output
• add focused identity, configuration, scope, and embedding-output coverage plus patch release intent

Validation

• package builds: OpenAI Agents, OpenInference, OpenRouter

• focused tests: 12/12, 6/6, 6/6 (24/24 total)

• npm pack --dry-run: all three packages

• corresponding locally linked examples: 13/13 under otel2-fix-js-group-03-20260815T085421Z

• Respan MCP: 13 complete trees and all 46 full records inspected; one real root per tree, exact span counts, all parents resolved, no duplicate IDs, expected content and package provenance preserved

• example typechecks, release inventory, release intents, and git diff --check

• Full source and paired-example diffs were audited against every applicable document under contribution/; canonical span fields, OTel attribute shapes, release-intent/version ownership, and package boundaries have no remaining package-owned violation.

External follow-ups

• The unchanged OpenInference package passed its success-path translation checks. Its deliberate provider rejection retains the exact error but is still displayed by platform ingestion as success/200; that residual platform-status gap is documented in the cumulative audit record.

Companion examples

• fix(examples-js): validate Anthropic OpenInference, OpenAI Agents, and OpenRouter OTel 2.x spans respan-example-projects#53

[greptile-apps]

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