Fix all PHPStan errors: add missing iterable types and fix CacheInterface::clear()

- Add @param array<string, mixed> to AnalyticsController::createVisitor()
- Add @param/@return array<string, mixed> to AnalyticsCryptoService encrypt/decrypt
- Add @param array<string, mixed>|null to InfraService calcCpuPercent/calcMemory
- Merge duplicate docblocks on InfraService::calcMemory()
- Use intersection type CacheInterface&CacheItemPoolInterface for MeilisearchService cache

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/Controller/AnalyticsController.php

@@ -79,6 +79,7 @@ class AnalyticsController extends AbstractController
         return new Response('', 204);
     }
 
+    /** @param array<string, mixed> $data */
     private function createVisitor(
         Request $request,
         array $data,

src/Service/AnalyticsCryptoService.php

@@ -14,6 +14,7 @@ class AnalyticsCryptoService
         $this->key = substr(hash('sha256', $this->analyticsSecret, true), 0, 32);
     }
 
+    /** @param array<string, mixed> $data */
     public function encrypt(array $data): string
     {
         $json = json_encode($data, \JSON_THROW_ON_ERROR);
@@ -24,6 +25,7 @@ class AnalyticsCryptoService
         return base64_encode($iv.$encrypted.$tag);
     }
 
+    /** @return array<string, mixed>|null */
     public function decrypt(string $payload): ?array
     {
         $raw = base64_decode($payload, true);

src/Service/InfraService.php

@@ -224,6 +224,7 @@ class InfraService
         return $result;
     }
 
+    /** @param array<string, mixed>|null $stats */
     private function calcCpuPercent(?array $stats): string
     {
         if (!$stats) {
@@ -241,6 +242,8 @@ class InfraService
     }
 
     /**
+     * @param array<string, mixed>|null $stats
+     *
      * @return array{used: string, limit: string, percent: string}
      */
     private function calcMemory(?array $stats): array

src/Service/MeilisearchService.php

@@ -3,6 +3,7 @@
 namespace App\Service;
 
 use App\Message\MeilisearchMessage;
+use Psr\Cache\CacheItemPoolInterface;
 use Symfony\Component\DependencyInjection\Attribute\Autowire;
 use Symfony\Component\Messenger\MessageBusInterface;
 use Symfony\Contracts\Cache\CacheInterface;
@@ -16,7 +17,7 @@ class MeilisearchService
         private MessageBusInterface $bus,
         #[Autowire(env: 'MEILISEARCH_URL')] private string $url,
         #[Autowire(env: 'MEILISEARCH_API_KEY')] private string $apiKey,
-        #[Autowire(service: 'meilisearch.cache')] private CacheInterface $cache,
+        #[Autowire(service: 'meilisearch.cache')] private CacheInterface&CacheItemPoolInterface $cache,
     ) {
     }