Adds five requires_* Booleans on fusion.plating.process.node
(requires_coc, requires_thickness_report, requires_nadcap_cert,
requires_mill_test, requires_customer_specific), default True.
Recipe is SUPPRESS-ONLY: when False, the recipe never produces that
cert type even if the customer/part requested it. Default True =
existing recipes keep producing the same cert set they produce today.
Surfaced on recipe-level form (node_type == 'recipe'); resolver reads
from job.recipe_id which is always a top-level recipe node.
Post-migrate backfills NULL -> TRUE on existing nodes.
Sub: docs/superpowers/specs/2026-05-27-recipe-cert-toggles-design.md
Task: T2.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
a5063cc816
