Fix Whisper healthcheck and root redirect test.

docker-compose.yml

@@ -12,7 +12,7 @@ services:
       WHISPER__MODEL: ${LOCAL_WHISPER_MODEL:-Systran/faster-whisper-base}
     restart: unless-stopped
     healthcheck:
-      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health')"]
+      test: ["CMD", "python3", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health')"]
       interval: 15s
       timeout: 5s
       retries: 10

tests/Feature/ExampleTest.php

@@ -12,8 +12,7 @@ class ExampleTest extends TestCase
      */
     public function test_the_application_returns_a_successful_response(): void
     {
-        $response = $this->get('/');
-
-        $response->assertStatus(200);
+        $this->get('/')
+            ->assertRedirect('/recordings');
     }
 }