feat: Add Store link to admin header and notification activity log

- Add Store link to admin header (visible when customer SPA is enabled)
- Add storeUrl and customerSpaEnabled to WNW_CONFIG in Assets.php and StandaloneAdmin.php
- Update window.d.ts with new WNW_CONFIG properties
- Create ActivityLog.tsx component with search, filters, and pagination
- Add /notifications/logs API endpoint to NotificationsController
- Update Notifications.tsx to link to activity log page
- Add ActivityLog route to App.tsx

includes/Api/NotificationsController.php

@@ -217,6 +217,15 @@ class NotificationsController {
 				'permission_callback' => [$this, 'check_permission'],
 			],
 		]);
+		
+		// GET /woonoow/v1/notifications/logs
+		register_rest_route($this->namespace, '/' . $this->rest_base . '/logs', [
+			[
+				'methods' => 'GET',
+				'callback' => [$this, 'get_logs'],
+				'permission_callback' => [$this, 'check_permission'],
+			],
+		]);
 	}
 	
 	/**
@@ -872,4 +881,54 @@ class NotificationsController {
 			),
 		], 200);
 	}
+	
+	/**
+	 * Get notification activity logs
+	 * 
+	 * @param WP_REST_Request $request Request object
+	 * @return WP_REST_Response
+	 */
+	public function get_logs(WP_REST_Request $request) {
+		$page = (int) $request->get_param('page') ?: 1;
+		$per_page = (int) $request->get_param('per_page') ?: 20;
+		$channel = $request->get_param('channel');
+		$status = $request->get_param('status');
+		$search = $request->get_param('search');
+		
+		// Get logs from option (in a real app, use a custom table)
+		$all_logs = get_option('woonoow_notification_logs', []);
+		
+		// Apply filters
+		if ($channel && $channel !== 'all') {
+			$all_logs = array_filter($all_logs, fn($log) => $log['channel'] === $channel);
+		}
+		
+		if ($status && $status !== 'all') {
+			$all_logs = array_filter($all_logs, fn($log) => $log['status'] === $status);
+		}
+		
+		if ($search) {
+			$search_lower = strtolower($search);
+			$all_logs = array_filter($all_logs, function($log) use ($search_lower) {
+				return strpos(strtolower($log['recipient'] ?? ''), $search_lower) !== false ||
+				       strpos(strtolower($log['subject'] ?? ''), $search_lower) !== false;
+			});
+		}
+		
+		// Sort by date descending
+		usort($all_logs, function($a, $b) {
+			return strtotime($b['created_at'] ?? '') - strtotime($a['created_at'] ?? '');
+		});
+		
+		$total = count($all_logs);
+		$offset = ($page - 1) * $per_page;
+		$logs = array_slice(array_values($all_logs), $offset, $per_page);
+		
+		return new WP_REST_Response([
+			'logs' => $logs,
+			'total' => $total,
+			'page' => $page,
+			'per_page' => $per_page,
+		], 200);
+	}
 }