feat(Production): Complete production deployment infrastructure

- Add comprehensive health check system with multiple endpoints
- Add Prometheus metrics endpoint
- Add production logging configurations (5 strategies)
- Add complete deployment documentation suite:
  * QUICKSTART.md - 30-minute deployment guide
  * DEPLOYMENT_CHECKLIST.md - Printable verification checklist
  * DEPLOYMENT_WORKFLOW.md - Complete deployment lifecycle
  * PRODUCTION_DEPLOYMENT.md - Comprehensive technical reference
  * production-logging.md - Logging configuration guide
  * ANSIBLE_DEPLOYMENT.md - Infrastructure as Code automation
  * README.md - Navigation hub
  * DEPLOYMENT_SUMMARY.md - Executive summary
- Add deployment scripts and automation
- Add DEPLOYMENT_PLAN.md - Concrete plan for immediate deployment
- Update README with production-ready features

All production infrastructure is now complete and ready for deployment.

tests/Support/InMemoryUploadProgressTracker.php

@@ -0,0 +1,153 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Support;
+
+use App\Framework\LiveComponents\Services\UploadProgressTrackerInterface;
+use App\Framework\LiveComponents\ValueObjects\UploadSession;
+use App\Framework\LiveComponents\ValueObjects\UploadSessionId;
+
+/**
+ * In-Memory Upload Progress Tracker for Testing
+ *
+ * Records all broadcast events for assertion in tests.
+ * Does not require actual SSE infrastructure.
+ */
+final class InMemoryUploadProgressTracker implements UploadProgressTrackerInterface
+{
+    /** @var array<array{type: string, session_id: string, user_id: string, data: array}> */
+    private array $broadcasts = [];
+
+    public function broadcastInitialized(UploadSession $session, string $userId): int
+    {
+        $this->broadcasts[] = [
+            'type' => 'initialized',
+            'session_id' => $session->sessionId->toString(),
+            'user_id' => $userId,
+            'data' => [
+                'file_name' => $session->fileName,
+                'total_size' => $session->totalSize->toBytes(),
+                'total_chunks' => $session->totalChunks,
+            ],
+        ];
+
+        return 1; // Simulated client count
+    }
+
+    public function broadcastChunkUploaded(UploadSession $session, string $userId): int
+    {
+        $this->broadcasts[] = [
+            'type' => 'chunk_uploaded',
+            'session_id' => $session->sessionId->toString(),
+            'user_id' => $userId,
+            'data' => [
+                'uploaded_chunks' => count($session->getUploadedChunks()),
+                'total_chunks' => $session->totalChunks,
+                'progress' => $session->getProgress(),
+            ],
+        ];
+
+        return 1;
+    }
+
+    public function broadcastCompleted(UploadSession $session, string $userId): int
+    {
+        $this->broadcasts[] = [
+            'type' => 'completed',
+            'session_id' => $session->sessionId->toString(),
+            'user_id' => $userId,
+            'data' => [
+                'file_name' => $session->fileName,
+                'completed_at' => $session->completedAt?->format('Y-m-d H:i:s'),
+            ],
+        ];
+
+        return 1;
+    }
+
+    public function broadcastAborted(UploadSessionId $sessionId, string $userId, string $reason = 'User cancelled'): int
+    {
+        $this->broadcasts[] = [
+            'type' => 'aborted',
+            'session_id' => $sessionId->toString(),
+            'user_id' => $userId,
+            'data' => [
+                'reason' => $reason,
+            ],
+        ];
+
+        return 1;
+    }
+
+    public function broadcastError(UploadSessionId $sessionId, string $userId, string $error): int
+    {
+        $this->broadcasts[] = [
+            'type' => 'error',
+            'session_id' => $sessionId->toString(),
+            'user_id' => $userId,
+            'data' => [
+                'error' => $error,
+            ],
+        ];
+
+        return 1;
+    }
+
+    public function broadcastQuarantineStatus(UploadSession $session, string $userId): int
+    {
+        $this->broadcasts[] = [
+            'type' => 'quarantine_status',
+            'session_id' => $session->sessionId->toString(),
+            'user_id' => $userId,
+            'data' => [
+                'quarantine_status' => $session->quarantineStatus->value,
+            ],
+        ];
+
+        return 1;
+    }
+
+    public function getProgress(UploadSessionId $sessionId): ?array
+    {
+        // In-memory mock doesn't track progress state
+        // Return null to indicate not available
+        return null;
+    }
+
+    /**
+     * Get all broadcast events (for testing)
+     *
+     * @return array<array{type: string, session_id: string, user_id: string, data: array}>
+     */
+    public function getBroadcasts(): array
+    {
+        return $this->broadcasts;
+    }
+
+    /**
+     * Get broadcasts by type (for testing)
+     *
+     * @return array<array{type: string, session_id: string, user_id: string, data: array}>
+     */
+    public function getBroadcastsByType(string $type): array
+    {
+        return array_filter($this->broadcasts, fn($b) => $b['type'] === $type);
+    }
+
+    /**
+     * Get broadcast count by type (for testing)
+     */
+    public function getBroadcastCount(string $type): int
+    {
+        return count($this->getBroadcastsByType($type));
+    }
+
+    /**
+     * Clear all broadcasts (for testing)
+     */
+    public function clear(): void
+    {
+        $this->broadcasts = [];
+    }
+}