feat: Implement conversion rate as (Completed Orders / Total Orders) × 100 and fix Recharts prop warning

admin-spa/src/routes/Dashboard/index.tsx

@@ -511,8 +511,8 @@ export default function Dashboard() {
             >
               <Pie
                 data={sortedOrderStatus}
-                dataKey={(entry) => entry.count || entry.value || 0}
-                nameKey={(entry) => entry.status || entry.name || 'Unknown'}
+                dataKey="count"
+                nameKey="status"
                 cx="50%"
                 cy="50%"
                 innerRadius={70}

includes/Api/AnalyticsController.php

@@ -368,7 +368,7 @@ class AnalyticsController {
 			ORDER BY count DESC
 		");
 		
-		// Format status distribution
+		// Format status distribution and calculate conversion rate
 		$formatted_status = [];
 		$status_colors = [
 			'wc-completed' => '#10b981',
@@ -380,11 +380,21 @@ class AnalyticsController {
 			'wc-failed' => '#dc2626',
 		];
 		
+		$total_all_orders = 0;
+		$completed_orders = 0;
+		
 		foreach ($orderStatusDistribution as $status) {
 			$status_name = str_replace('wc-', '', $status->status);
+			$count = intval($status->count);
+			
+			$total_all_orders += $count;
+			if ($status->status === 'wc-completed') {
+				$completed_orders = $count;
+			}
+			
 			$formatted_status[] = [
 				'status' => ucfirst($status_name),
-				'count' => intval($status->count),
+				'count' => $count,
 				'color' => $status_colors[$status->status] ?? '#6b7280',
 			];
 		}
@@ -392,6 +402,9 @@ class AnalyticsController {
 		// Calculate metrics
 		$avg_order_value = $total_orders > 0 ? round($total_revenue / $total_orders, 2) : 0;
 		
+		// Calculate conversion rate: (Completed Orders / Total Orders) × 100
+		$conversion_rate = $total_all_orders > 0 ? round(($completed_orders / $total_all_orders) * 100, 2) : 0.00;
+		
 		// Get top products
 		$products_table = $wpdb->prefix . 'wc_order_product_lookup';
 		$top_products = $wpdb->get_results($wpdb->prepare("
@@ -465,8 +478,8 @@ class AnalyticsController {
 					'change' => 0,
 				],
 				'conversionRate' => [
-					'today' => 0, // TODO: Calculate
-					'yesterday' => 0,
+					'today' => $conversion_rate,
+					'yesterday' => 0, // TODO: Calculate previous period
 					'change' => 0,
 				],
 			],