feat(history): show event context with online simulation and SCADA

src/lib/elementHistory.test.ts

@@ -28,8 +28,46 @@ describe("element history display conversion", () => {
     ];
 
     const points = toTimeSeriesPoints(series);
-    expect(points[0].timestamp).toBe("2026-09-01T00:00:00Z");
-    expect(points[0].values["P-1_sim"]).toBeCloseTo(83.3333333334);
+    expect(points[0].timestamp).toBe("2026-09-01T00:00:00.000Z");
+    expect(points[0].values['["pipe","P-1","realtime_simulation"]']).toBeCloseTo(83.3333333334);
     expect(points[0].values["pressure-1_clean"]).toBeCloseTo(1.019716213);
   });
+
+  it("aligns equivalent timestamps and keeps same-name pipes and junctions separate", () => {
+    const base: ElementHistorySeries = {
+      element_id: "shared-id", element_type: "pipe", device_id: null,
+      metric: "flow", source: "realtime_simulation", source_unit: "L/s",
+      display_unit: "m³/h", unit_inferred: false,
+      points: [{ time: "2026-09-01T08:00:00+08:00", value: 10 }],
+    };
+    const points = toTimeSeriesPoints([
+      base,
+      { ...base, element_type: "junction", metric: "pressure", source_unit: "m",
+        points: [{ time: "2026-09-01T00:00:00Z", value: 20 }] },
+      { ...base, source: "analysis_simulation", points: [
+        { time: "2026-09-01T00:00:00.000Z", value: null },
+      ] },
+    ]);
+    expect(points).toHaveLength(1);
+    expect(points[0].values).toEqual({
+      '["pipe","shared-id","realtime_simulation"]': 36,
+      '["junction","shared-id","realtime_simulation"]': 20,
+      '["pipe","shared-id","analysis_simulation"]': null,
+    });
+  });
+
+  it("keeps online IDs ending in _scheme distinct from another element's scheme series", () => {
+    const base: ElementHistorySeries = {
+      element_id: "P_scheme", element_type: "pipe", device_id: null,
+      metric: "flow", source: "realtime_simulation", source_unit: "m3/h",
+      display_unit: "m³/h", unit_inferred: false,
+      points: [{ time: "2026-09-01T00:00:00Z", value: 100 }],
+    };
+    const points = toTimeSeriesPoints([
+      base,
+      { ...base, element_id: "P", source: "analysis_simulation",
+        points: [{ time: "2026-09-01T00:00:00Z", value: 5 }] },
+    ]);
+    expect(Object.values(points[0].values).sort((a, b) => Number(a) - Number(b))).toEqual([5, 100]);
+  });
 });