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Coding (Platform)

FastAPI: Sessionize event activity for background job activity stream

A production request path returns inconsistent decisions during retries and concurrent updates. The affected area is background job.

Repair the background job activity stream implementation so it splits activity after the configured inactivity gap and counts sessions per actor.

Evidence

  • Affected surface: FastAPI / background job.
  • Observed failure family: sessionize event activity.
  • Scope policy: cohort must equal stable.

What this task practices

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