CrewAI 1.15.15 reports flow outcome, duration and human-in-the-loop signals, and forces a torch 2.13.0 security bump

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Shipped August 12, CrewAI 1.15.15 adds reporting of flow outcome, duration and human-in-the-loop signals — telemetry that previously had to be reconstructed from spans — and fixes a real observability gap where FlowStartedEvent was not emitted when a boundary hook aborted the flow, meaning aborted runs were invisible to listeners. It also scopes span export to CrewAI's own tracer provider rather than the global one, which stops it from hijacking a host application's OpenTelemetry setup. Dependency bumps address security in torch (to 2.13.0) and gitpython (to 3.1.58 in crewai-tools[github]); CLI flags were standardized to kebab-case, a breaking change for scripted invocations.