fix(domain): 使用空值表示缺失业务指标

src/domain/battery.test.ts

@@ -90,9 +90,9 @@ describe('battery domain', () => {
     expect(snapshot.devices.every((device) => device.soh30d === null)).toBe(true)
     expect(snapshot.devices.every((device) => device.soh90d === null)).toBe(true)
     expect(snapshot.devices.every((device) => device.soh60d === null)).toBe(true)
-    expect(snapshot.devices.every((device) => device.cycles === 0)).toBe(true)
+    expect(snapshot.devices.every((device) => device.cycles === null)).toBe(true)
-    expect(snapshot.devices.every((device) => device.temperature === 0)).toBe(true)
+    expect(snapshot.devices.every((device) => device.temperature === null)).toBe(true)
-    expect(snapshot.devices.every((device) => device.chargeEfficiency === 0)).toBe(true)
+    expect(snapshot.devices.every((device) => device.chargeEfficiency === null)).toBe(true)
     expect(snapshot.devices[0]?.firmware).toBe('v3.8.2')
     expect(snapshot.devices[1]?.firmware).toBe('未提供')
     expect(snapshot.soh.history).toHaveLength(0)
@@ -140,8 +140,8 @@ describe('battery domain', () => {
     expect(predicted?.cycles).toBe(6)
     expect(predicted?.firmware).toBe('v3.8.2')
     expect(predicted?.status).toBe(DEVICE_STATUS.WARNING)
-    expect(predicted?.temperature).toBe(0)
+    expect(predicted?.temperature).toBeNull()
-    expect(predicted?.chargeEfficiency).toBe(0)
+    expect(predicted?.chargeEfficiency).toBeNull()
     expect(snapshot.soh.history).toHaveLength(0)
     expect(snapshot.soh.forecast).toHaveLength(3)
     expect(snapshot.soh.forecast[0]).toEqual({ month: '当前', value: 60 })

src/domain/battery.ts

@@ -57,15 +57,15 @@ export const fleetUnitSchema = z.object({
   displayName: z.string(),
   batch: z.string(),
   firmware: z.string(),
-  cycles: z.number().int(),
+  cycles: z.number().int().nullable(),
   soh: z.number().nullable(),
   sohSource: z.union([z.literal('prediction'), z.literal('unavailable')]),
   soh30d: z.number().nullable(),
   soh60d: z.number().nullable(),
   soh90d: z.number().nullable(),
-  temperature: z.number(),
+  temperature: z.number().nullable(),
   riskScore: z.number().int(),
-  chargeEfficiency: z.number(),
+  chargeEfficiency: z.number().nullable(),
   status: deviceStatusSchema,
   riskFactors: z.array(z.string()),
 })
@@ -260,8 +260,8 @@ function toFleetUnit(item: BatteryInfo, prediction?: BatteryPrediction): FleetUn
   const soh30d = prediction ? round1(clamp(prediction.monthSoh, 0, 100)) : null
   const soh90d = prediction ? round1(clamp(prediction.trmonthSoh, 0, 100)) : null
   const soh60d = null
-  const temperature = 0
+  const temperature = null
-  const chargeEfficiency = 0
+  const chargeEfficiency = null
   const fallbackRiskScore =
     (item.isLowPower || item.power <= SOH_THRESHOLDS.LOW_POWER ? 60 : 0) +
     (item.powerStatus === POWER_STATUS.CHARGING ? 20 : 0)
@@ -272,7 +272,7 @@ function toFleetUnit(item: BatteryInfo, prediction?: BatteryPrediction): FleetUn
     displayName: item.devName || item.mac,
     batch: item.devModel,
     firmware: item.remark ?? '未提供',
-    cycles: prediction?.cyclesUsed ?? 0,
+    cycles: prediction?.cyclesUsed ?? null,
     soh,
     sohSource: prediction ? 'prediction' : 'unavailable',
     soh30d,