Sourced FDM and sheet-metal process rules had sat in research/process-profiles.yaml since an earlier issue, but nothing read them. This PR adds the loader, a minimum-feature DFM check and a bend calculator, and unverified rows are refused.
From the Grok pain-radar digests, Nov 1-2 2026 (Nov 1 8:41 AM ET through Nov 2 7:41 AM ET digests plus the Haitch editions). Verified live 2026-11-02: issue/PR read; title and state confirmed.