CalculationSourceObject: Making Calculations Reviewable

Field notes

Annotated Python supplies both executable logic and metadata such as displayed symbols, units, descriptions, and assumptions. The resulting CalculationSourceObject preserves value-tree steps and execution observations, while FormulaSheet renders rows for formulas, substitutions, and results without executing calculations itself. The example uses a 2 m by 3 m panel to produce 6 m², and the documentation distinguishes source-to-document consistency from separately supplied numerical reference cases.