C.3.A:B.7 - Evidence guards

Guard_EvidencePlan_Typed SHALL check exact row declaration editions, exact slice columns, bridge/assertion needs, candidate-selection policy, freshness, independence, and TA declarations. Planning rows do not count as candidate judgments.

Guard_EvidenceAttach_Typed SHALL bind every evidence unit to its exact claim/use, row declaration, slice, exact candidate when current, judgment value, support relation, freshness, and bridge consequences. It SHALL preserve unknown and the separate attach/refuse disposition.