Improve editor totals and formatting

tests/circuit-grid-model.test.ts

@@ -4,6 +4,7 @@ import {
   allColumns,
   buildCircuitEditPatch,
   buildDeviceRowEditPatch,
+  formatValue,
   getBlockSortValue,
   getCellKind,
   getCircuitValue,
@@ -76,6 +77,13 @@ describe("circuit grid model", () => {
     assert.equal(getCircuitValue(circuit, "cableSummary"), "NYM-J, 1.5 mm², 20 m");
   });
 
+  it("formats displayed numeric values without changing their stored precision", () => {
+    assert.equal(formatValue(0.123456, "powerPerUnit"), "0,123");
+    assert.equal(formatValue(0.87654, "simultaneityFactor"), "0,88");
+    assert.equal(formatValue(230.4, "voltage"), "230");
+    assert.equal(formatValue(16, "protectionRatedCurrent"), "16");
+  });
+
   it("uses circuit display values for block sorting and falls back to the first device", () => {
     assert.equal(getBlockSortValue(circuit, "displayName"), "Lighting circuit");
     assert.equal(getBlockSortValue({ ...circuit, displayName: undefined }, "displayName"), "Office light");

tests/circuit-grid-projection.test.ts

@@ -164,6 +164,15 @@ describe("circuit grid projection", () => {
       rows.at(-1)?.cells.find((cell) => cell.cellKey === "equipmentIdentifier")?.value,
       "-frei-"
     );
+    const circuitSummary = rows.find((row) => row.rowType === "circuitSummary");
+    assert.equal(
+      circuitSummary?.cells.find((cell) => cell.cellKey === "rowTotalPower")?.value,
+      multiDeviceCircuit.circuitTotalPower
+    );
+    assert.equal(
+      circuitSummary?.cells.some((cell) => cell.cellKey === "circuitTotalPower"),
+      false
+    );
   });
 
   it("collects filter options from both circuit and device values", () => {