🛠 Summary

CVS-163721

If request content-type is application-json - route based on model JSON field
If request content-type s multipart - route based on mode multipart field
In other cases try to deduce graph name from URI: /v3/GRAPH-NAME

• multipart field/file access for calculators
• unit tests

🧪 Checklist

• Unit tests added.
• Change follows security best practices.