Make `continuity_equation!` and `density_diffusion!` work on Ref values#1130

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efaulhaber merged 9 commits intotrixi-framework:mainfrom

efaulhaber:continuity-equation-ref

Apr 14, 2026

Commits on Apr 2, 2026

Make `continuity_equation!` and `density_diffusion!` work on Ref values
efaulhaber
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