add documents+ai_data to getDriverDetails, create rejectDriver endpoint, add rejected_reason column

backend/serviceapp/rejectDriver.php

@@ -0,0 +1,23 @@
+<?php
+require_once __DIR__ . '/../connect.php';
+
+$driverId   = filterRequest("driverId");
+$reason     = filterRequest("reason");
+
+if (empty($driverId)) {
+    jsonError("driverId is required");
+    exit;
+}
+
+$sql = "UPDATE `driver` SET `status` = 'rejected', `rejected_reason` = :reason WHERE `id` = :driverId";
+$stmt = $con->prepare($sql);
+$stmt->execute([
+    ':reason'   => $reason ?: 'Rejected by service agent',
+    ':driverId' => $driverId,
+]);
+
+if ($stmt->rowCount() > 0) {
+    jsonSuccess(["message" => "Driver rejected successfully."]);
+} else {
+    jsonError("Driver not found or already rejected.");
+}