REQ-FUN-135
Cost estimate basis (per-budget-row)
What
cost_estimate_basis enum + cost_estimate_rationale text on each budget allocation row. Surface in cost report.
Why
established project management guidelines Estimate Costs output is Cost Estimates + Basis of Estimates.
How
Cost-specific instantiation of REQ-FUN-134 pattern.
Done when
Cost report shows basis column; budget allocation CRUD supports the fields.
Out of scope
Currency-aware basis.
established project management guidelines Mapping
Cost-specific Basis of Estimates per budget allocation row; established project management guidelines Estimate Costs output.