Fix biological warm start for cell ax bx#911
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Bug description
Biological optimization warm-start handling does not consistently support
dij.axanddij.bxstored as cell arrays per CT scenario.This can affect initialization paths where
wInitis provided directly, becauseixDoseandgammawere computed assuming non-cell biological parameter arrays. The same biological metadata preparation was also partly duplicated acrossmatRad_fluenceOptimization.Approach
This PR adds
matRad_prepareBiologicalOptimizationDijto centralize biological dij preparation before initial fluence weights are estimated.The helper:
dij.axanddij.bxto one cell entry per CT scenarioax/bxvalues fromcstcstdij.ixDosedij.gammafor variable RBE projectionmatRad_fluenceOptimizationnow calls this helper once after selecting the back-projection model, so providedwInitand internally estimated warm starts use the same prepared biological metadata.No new user-facing parameters, external dependencies are introduced.
Validation
matRad_runTests('test/optimization/test_biologicalOptimizationDij.m')matRad_runTests('test/optimization')