get
https://api.stampee.fr/messages//evidences/
Retrieve a specific evidence document for a message by its status/event type.
Important notes:
- Returns 404 if message doesn't exist, user doesn't have access, or evidence doesn't exist
- Only one evidence per status is allowed (returns 404 if multiple found)
- Evidence PDFs are signed and cached for 24 hours
- If evidence doesn't exist yet, it will be generated on-demand
- Works with both mTLS and API token authentication