Derive device voltages from project settings

src/frontend/components/circuit-tree-editor.tsx

@@ -5,6 +5,10 @@ import {
   inferProjectDeviceSectionKey,
   isProjectDevicePlacementValid,
 } from "../../domain/services/project-device-placement.service";
+import {
+  resolveCircuitPhaseType,
+  resolveProjectVoltage,
+} from "../../domain/services/project-voltage.service";
 import {
   getInsertionSortOrder,
   resolveGridInsertionIntent,
@@ -819,6 +823,19 @@ export function CircuitTreeEditor(props: { projectId: string; circuitListId: str
     values: CreateCircuitInputDto,
     deviceRowValues: CreateCircuitDeviceRowInputDto[] = []
   ) {
+    const section = data?.sections.find(
+      (entry) => entry.id === values.sectionId
+    );
+    if (!section || !data) {
+      throw new Error("Bereich wurde nicht gefunden.");
+    }
+    const voltage = resolveProjectVoltage(
+      resolveCircuitPhaseType(
+        section.key,
+        deviceRowValues.map((row) => row.phaseType)
+      ),
+      data
+    );
     const circuitId = crypto.randomUUID();
     const deviceRows = deviceRowValues.map((row, index) =>
       createDeviceRowSnapshot(circuitId, row, (index + 1) * 10)
@@ -826,7 +843,7 @@ export function CircuitTreeEditor(props: { projectId: string; circuitListId: str
     return buildCircuitInsertSnapshot({
       id: circuitId,
       circuitListId,
-      values,
+      values: { ...values, voltage },
       deviceRows,
     });
   }