Schedule history now shows a readable reason instead of the engine's raw code,
and under the newest run stopped by knowledge_not_ready it lists the Library
material that blocks it, with a link to fix it in Learning Studio. The list
refreshes while that material is still processing or building.
Upload gets a "Process again" button for a failed document, using the engine's
new reprocess endpoint; a knowledge base the document already has is kept. A
document being processed again no longer shows as "In the Brain".
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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