Add dashboard report snapshots feature with CRUD operations. Implemented new database migrations for dashboard_report_snapshots, including report type handling. Updated backend routes and models to support snapshot retrieval and upsert functionality. Enhanced frontend components to integrate report snapshot management, including UI for daily and end-cycle reports. Added tests for new functionality to ensure reliability.

types/dashboardReport.ts

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+/** Accuracy % or N/A (null) for IoT vs manual report cells. */
+export type ReportAccuracy = number | null;
+
+export interface DashboardReportCountingRow {
+  date: string;
+  day: number;
+  countBefore: number | null;
+  mortality: number | null;
+  harvest: number | null;
+  harvestWeight: number | null;
+  countAfter: number | null;
+  iotCount: number | null;
+  accuracy: ReportAccuracy;
+}
+
+export interface DashboardReportWeightRow {
+  date: string;
+  day: number;
+  avgManual: number | null;
+  avgIot: number | null;
+  uniformity: number | null;
+  difference: number | null;
+  accuracy: ReportAccuracy;
+}
+
+export interface DashboardReportFeedInRow {
+  date: string;
+  manualIn: number | null;
+  iotIn: number | null;
+  accuracy: ReportAccuracy;
+}
+
+export interface DashboardReportFeedUseRow {
+  date: string;
+  day: number;
+  manualUse: number | null;
+  iotUse: number | null;
+  accuracy: ReportAccuracy;
+}
+
+export type DashboardReportType = 'daily' | 'end_cycle';
+
+export interface DashboardReportFcrRow {
+  day: number;
+  iotFcr: number | null;
+  feedTotal: number | null;
+  iotWeight: number | null;
+  chickenLife: number | null;
+  harvestWeightTotal: number | null;
+}
+
+export interface DashboardReportEefRow {
+  day: number;
+  iotEef: number | null;
+  chickenLifePercentage: number | null;
+  iotAverageHarvestBw: number | null;
+  iotAverageDayWeight: number | null;
+  iotFcr: number | null;
+}
+
+export interface DashboardReportPayload {
+  cycleId: string;
+  kandangId: number;
+  kandangName: string;
+  area: string;
+  upToDay: number;
+  generatedAt: string;
+  reportType?: DashboardReportType;
+  counting: DashboardReportCountingRow[];
+  weight: DashboardReportWeightRow[];
+  feedIn: DashboardReportFeedInRow[];
+  feedUse: DashboardReportFeedUseRow[];
+  fcr?: DashboardReportFcrRow[];
+  eef?: DashboardReportEefRow[];
+}
+
+export interface DashboardReportSnapshotRecord {
+  id: number;
+  cycleId: string;
+  kandangId: number;
+  upToDay: number;
+  generatedAt: string;
+  reportType?: DashboardReportType;
+  payload: DashboardReportPayload;
+  createdAt?: string;
+  updatedAt?: string;
+}
+
+export interface DashboardReportSnapshotResponse {
+  success: boolean;
+  data: DashboardReportSnapshotRecord | null;
+  message?: string;
+  error?: string;
+}