fix: code review cleanup — filter deletedAt, deduplicate, use toast util

- getMeasurementByDate: AND deletedAt IS NULL (soft-deleted meting triggerde dubbele-datum alert)
- Dashboard/History: verwijder redundante JS .filter(m => !m.deletedAt) (SQL filterde al)
- HistoryScreen confirmDelete: fix dubbele load() call
- NewMeasurementScreen: gebruik toast utility i.p.v. direct ToastAndroid

src/database/db.ts

@@ -77,7 +77,7 @@ export async function getMeasurementsSince(date: string): Promise<Measurement[]>
 export async function getMeasurementByDate(date: string): Promise<Measurement | null> {
   const day = date.slice(0, 10)
   const rows = await db!.getAllAsync<any>(
-    "SELECT * FROM measurements WHERE measuredAt LIKE ? LIMIT 1",
+    "SELECT * FROM measurements WHERE measuredAt LIKE ? AND deletedAt IS NULL LIMIT 1",
     [`${day}%`]
   )
   return rows.length > 0 ? (rows[0] as Measurement) : null

src/screens/DashboardScreen.tsx

@@ -18,7 +18,7 @@ export default function DashboardScreen({ navigation }: Props) {
       const load = async () => {
         // 1. Laad alleen laatste 2 metingen voor de kaart (snel!)
         await loadLatest(2)
-        setAll(getCached().filter(m => !m.deletedAt))
+        setAll(getCached())
 
         // 2. Laad rest van de data op achtergrond voor grafieken + sync
         const loadRest = async () => {
@@ -28,7 +28,7 @@ export default function DashboardScreen({ navigation }: Props) {
           await loadSince(cutoffDate.toISOString())
 
           // Update UI met grafiek-data (nog geen sync)
-          setAll(getCached().filter(m => !m.deletedAt))
+          setAll(getCached())
 
           // Sync met server (achtergrond)
           try {
@@ -40,7 +40,7 @@ export default function DashboardScreen({ navigation }: Props) {
           }
 
           // Update UI met eventuele nieuwe data van sync
-          setAll(getCached().filter(m => !m.deletedAt))
+          setAll(getCached())
         }
         loadRest()
       }

src/screens/HistoryScreen.tsx

@@ -17,7 +17,7 @@ export default function HistoryScreen({ navigation }: Props) {
   const load = useCallback(async () => {
     await initDatabase()
     const all = await getAllMeasurements()
-    setMeasurements(all.filter(m => !m.deletedAt))
+    setMeasurements(all)
   }, [])
 
   useFocusEffect(
@@ -72,11 +72,10 @@ export default function HistoryScreen({ navigation }: Props) {
                 await createApi(config).deleteMeasurement(m.id)
                 await removeMeasurement(m.id)
               }
+              load()
             } catch {
-              await load()
-              return
+              load()
             }
-            load()
           },
         },
       ]

src/screens/NewMeasurementScreen.tsx

@@ -1,10 +1,11 @@
-import React, { useCallback, useEffect, useState } from 'react'
-import { View, Text, Alert, Platform, ToastAndroid } from 'react-native'
+import React, { useCallback, useState } from 'react'
+import { View, Text, Alert } from 'react-native'
 import { useFocusEffect } from '@react-navigation/native'
 import MeasurementForm from '../components/MeasurementForm'
 import { Measurement } from '../types'
 import { initDatabase, insertMeasurement, upsertMeasurement, getLatestMeasurement, getMeasurementByDate } from '../database/db'
 import { updateCache } from '../store/measurementStore'
+import { showSuccess, showError } from '../utils/toast'
 
 type Props = {
   navigation: any
@@ -81,13 +82,9 @@ export default function NewMeasurementScreen({ navigation, route }: Props) {
     try {
       const { uploadMeasurement } = await import('../sync/syncService')
       await uploadMeasurement(m)
-      if (Platform.OS === 'android') {
-        ToastAndroid.show('Opgeslagen & gesynct', ToastAndroid.SHORT)
-      }
+      showSuccess('Opgeslagen & gesynct')
     } catch {
-      if (Platform.OS === 'android') {
-        ToastAndroid.show('Opgeslagen (sync mislukt)', ToastAndroid.LONG)
-      }
+      showError('Opgeslagen (sync mislukt)')
     }
   }