Prove failed() log shape with behavior test

Tests that UpdateApps::failed() and ProcessApps::failed():
 - call Log::error with the 'permanently failed' message
 - include exception_class, exception_message, and file context keys
 - for UpdateApps, still call Cache::lock('updateApps')->forceRelease()

Uses Log::spy() and Mockery to capture facade calls. 2 tests, 4
assertions, green on PHP 8.4.20. See follow-up commit for why this
lands in history but not in the shipped suite.

tests/Feature/QueueFailedHandlerTest.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Jobs\ProcessApps;
+use App\Jobs\UpdateApps;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Facades\Log;
+use Mockery;
+use RuntimeException;
+use Tests\TestCase;
+
+class QueueFailedHandlerTest extends TestCase
+{
+    /** @test */
+    public function processApps_failed_logs_structured_context(): void
+    {
+        Log::spy();
+
+        $job = new ProcessApps();
+        $exception = new RuntimeException('GitHub API rate limit exceeded');
+
+        $job->failed($exception);
+
+        Log::shouldHaveReceived('error')
+            ->once()
+            ->with(
+                ProcessApps::class . ' permanently failed',
+                Mockery::on(function ($context) {
+                    return $context['exception_class'] === RuntimeException::class
+                        && $context['exception_message'] === 'GitHub API rate limit exceeded'
+                        && str_contains($context['file'], 'QueueFailedHandlerTest.php');
+                })
+            );
+    }
+
+    /** @test */
+    public function updateApps_failed_logs_structured_context_and_releases_cache_lock(): void
+    {
+        Log::spy();
+
+        $lockMock = Mockery::mock();
+        $lockMock->shouldReceive('forceRelease')->once();
+        Cache::shouldReceive('lock')->with('updateApps')->once()->andReturn($lockMock);
+
+        $job = new UpdateApps();
+        $exception = new RuntimeException('Something broke');
+
+        $job->failed($exception);
+
+        Log::shouldHaveReceived('error')
+            ->once()
+            ->with(
+                UpdateApps::class . ' permanently failed',
+                Mockery::on(function ($context) {
+                    return $context['exception_class'] === RuntimeException::class
+                        && $context['exception_message'] === 'Something broke'
+                        && isset($context['file'])
+                        && str_contains($context['file'], ':');
+                })
+            );
+    }
+}