Verified: deriveFindingsFromContributions() exists with passing tests but
is never called in production. The contributions → findings seam is un-wired:
1. handleDeconstructSubmit() sends contribution to ScenarioForm
2. appendFocusedContribution() stores it in focusedContributions[]
3. findings state stays [] — no derivation ever runs
4. empty findings sent to /api/cases/update (which only echoes them back)
5. nothing renders from the findings surface
Fix: call deriveFindingsFromContributions after contribution is appended.
robbond
dc558e9c37