ai insight rework #2

components/WeightMonitoringPage.tsx

@@ -3,7 +3,12 @@ import { api, ApiError, errorMessage } from '../services/apiClient.ts';
 import type { ChickenWeight, LatestAvg } from '../types/api.ts';
 import { useFarm } from '../context/FarmContext.tsx';
 import { Banner, EmptyFarm, PageHeader, Spinner } from './ui/Feedback.tsx';
-import { formatDateId, formatDateRange, formatNumber, resolveCycleStatus } from '../utils/format.ts';
+import {
+  formatDateId,
+  formatDateRange,
+  formatNumber,
+  resolveCycleStatus,
+} from '../utils/format.ts';
 import { formatWeight } from '../utils/weight.ts';
 import { buildWeightInsightContext } from '../utils/insightContextBuilders.ts';
 import WeightStats from './weight/WeightStats.tsx';
@@ -204,17 +209,22 @@ const WeightMonitoringPage: React.FC<{ onSettings: () => void }> = ({ onSettings
                     agg: 'lastValid',
                     replaces: 'averageWeight',
                   },
+                  // Target weight exists from day 0; 0 means not set yet
                   targetBobot_gram: {
                     field: 'target_gram',
-                    agg: 'lastValid',
+                    agg: 'last',
                     replaces: 'targetWeight',
+                    emptyAs: 0,
                   },
+                  // ADG: 0 is valid (no gain yet), use 'last' with emptyAs: 0
                   pertambahanHarian_gramPerHari: {
                     field: 'adg_gram_per_hari',
-                    agg: 'lastValid',
+                    agg: 'last',
                     replaces: 'adg',
+                    emptyAs: 0,
                   },
                 },
+                drop: ['averageWeight', 'targetWeight', 'adg'],
               }}
             />
           ) : (