chore: fix phpstan errors

src/Service/BookingExporter.php

@@ -156,8 +156,8 @@ class BookingExporter
     /**
      * Creates the spreadsheet with participant data.
      *
-     * @param BookingEditDraft $draft   The draft containing form data
-     * @param array            $lookups The ID to label lookup arrays
+     * @param BookingEditDraft                  $draft   The draft containing form data
+     * @param array<string, array<int, string>> $lookups The ID to label lookup arrays
      */
     private function createSpreadsheet(BookingEditDraft $draft, array $lookups): Spreadsheet
     {
@@ -203,6 +203,10 @@ class BookingExporter
     /**
      * Writes a single participant row to the spreadsheet.
      */
+    /**
+     * @param array<string, mixed>              $participant
+     * @param array<string, array<int, string>> $lookups
+     */
     private function writeParticipantRow(
         \PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $sheet,
         int $row,
@@ -298,6 +302,7 @@ class BookingExporter
     /**
      * Resolves a single service ID to its label.
      */
+    /** @param array<int, string> $lookup */
     private function resolveService(int|string|null $serviceId, array $lookup): string
     {
         if (null === $serviceId || '' === $serviceId) {
@@ -312,6 +317,10 @@ class BookingExporter
     /**
      * Resolves an array of service IDs to labels, joined by pipe.
      */
+    /**
+     * @param list<int|string|null> $serviceIds
+     * @param array<int, string>    $lookup
+     */
     private function resolveServiceArray(array $serviceIds, array $lookup): string
     {
         if (true === empty($serviceIds)) {
@@ -332,6 +341,7 @@ class BookingExporter
     /**
      * Resolves a room ID to its label.
      */
+    /** @param array<int, string> $lookup */
     private function resolveRoom(?int $roomId, array $lookup): string
     {
         if (null === $roomId) {
@@ -344,6 +354,7 @@ class BookingExporter
     /**
      * Resolves a pickup ID to its label.
      */
+    /** @param array<int, string> $lookup */
     private function resolvePickup(?int $pickupId, array $lookup): string
     {
         if (null === $pickupId) {