Function resolve_coupled_fieldwise 

pub fn resolve_coupled_fieldwise(
    request: &CoupledFieldwiseRealizationRequest,
    requirements: CoupledFieldwiseRealizationRequirements,
    capabilities: &RealizationCapabilities,
) -> Result<ResolvedCoupledFieldwiseRealization, Diagnostic>

Resolve one explicit coupled Field-wise request without fallback.

Errors

Returns EQ0807 for exact Domain, Field, or Connection drift, an invalid plan, or an unsupported complete backend capability.