Attach the request an intent was written from, stored verbatim, so the first review can show the original ask beside the agent's interpretation.

Fills the gap that left the first review's original-request column empty: create_evidence takes a free-text source LABEL, not a document, so a ticket handed to an agent could never reach the column built to show it. One call writes a source document holding the text verbatim, one evidence item of type request that carries source_document_id, and the link to the intent. Attaching is deliberately not reviewing: the evidence lands status active, triage_status inbox and origin agent, which classifies as unreviewed — visible to the review, never counted as backing for a claim, so an agent cannot manufacture backing from its own input. The document is written with type import and file_type agent, which keeps it clear of the tracker-import undo path (that path requires a provider file_type). Same title and identical bytes in the same product is treated as the same request. Attaching a different request adds a second source rather than replacing the first; the review offers them as a picker.