- findProcessorInTree now skips non-selected iteration wrappers so
the returned ProcessorNode has data from the correct iteration
- Gate selectedProcessor on overlay presence so processors not
executed in the current iteration don't show in the detail panel
- Header shows "Exchange Details" or "Processor Details" contextually
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>