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fix: add LangSmith regional endpoint support and source step#38

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gloriamacia:fix/langsmith-regional-endpoint-setup
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fix: add LangSmith regional endpoint support and source step#38
gloriamacia wants to merge 1 commit into
brevdev:mainfrom
gloriamacia:fix/langsmith-regional-endpoint-setup

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Fixes #37

Users outside the US were silently sending traces to the wrong endpoint, causing tracing to fail with no clear error.

  • variables.env: add regional endpoint comment block (GCP US/EU/APAC and AWS US) and add LANGCHAIN_ENDPOINT mirroring LANGSMITH_ENDPOINT for older langsmith client versions
  • running.md: add explicit source /project/variables.env step before langgraph dev so env changes are picked up in the current session
  • All 5 module secrets.md files: add "Outside the US?" collapsible callout with correct regional endpoints and the source step

Users outside the US were silently sending traces to the wrong endpoint,
causing tracing to fail with no clear error.

- variables.env: add regional endpoint comment block (GCP US/EU/APAC and
  AWS US) and add LANGCHAIN_ENDPOINT mirroring LANGSMITH_ENDPOINT for
  older langsmith client versions
- running.md: add explicit `source /project/variables.env` step before
  `langgraph dev` so env changes are picked up in the current session
- All 5 module secrets.md files: add "Outside the US?" collapsible callout
  with correct regional endpoints and the source step

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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[Bug] LangSmith tracing fails for non-US users + env changes not picked up without re-sourcing

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