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.

src/Framework/Process/ValueObjects/SystemInfo/DiskInfo.php

@@ -0,0 +1,93 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Framework\Process\ValueObjects\SystemInfo;
+
+use App\Framework\Core\ValueObjects\Byte;
+
+/**
+ * Disk Information.
+ */
+final readonly class DiskInfo
+{
+    public function __construct(
+        public int $totalBytes,
+        public int $usedBytes,
+        public int $availableBytes,
+        public string $mountPoint = '/'
+    ) {
+    }
+
+    /**
+     * Erstellt eine leere DiskInfo Instanz.
+     */
+    public static function empty(): self
+    {
+        return new self(0, 0, 0, '/');
+    }
+
+    /**
+     * Gibt die Auslastung als Prozent zurück (0-100).
+     */
+    public function getUsagePercentage(): float
+    {
+        if ($this->totalBytes === 0) {
+            return 0.0;
+        }
+
+        return ($this->usedBytes / $this->totalBytes) * 100;
+    }
+
+    /**
+     * Prüft, ob die Disk fast voll ist (>90%).
+     */
+    public function isAlmostFull(): bool
+    {
+        return $this->getUsagePercentage() > 90;
+    }
+
+    /**
+     * Gibt Total als Byte Value Object zurück.
+     */
+    public function getTotal(): Byte
+    {
+        return Byte::fromBytes($this->totalBytes);
+    }
+
+    /**
+     * Gibt Used als Byte Value Object zurück.
+     */
+    public function getUsed(): Byte
+    {
+        return Byte::fromBytes($this->usedBytes);
+    }
+
+    /**
+     * Gibt Available als Byte Value Object zurück.
+     */
+    public function getAvailable(): Byte
+    {
+        return Byte::fromBytes($this->availableBytes);
+    }
+
+    /**
+     * Konvertiert zu Array.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(): array
+    {
+        return [
+            'mount_point' => $this->mountPoint,
+            'total_bytes' => $this->totalBytes,
+            'total_human' => $this->getTotal()->toHumanReadable(),
+            'used_bytes' => $this->usedBytes,
+            'used_human' => $this->getUsed()->toHumanReadable(),
+            'available_bytes' => $this->availableBytes,
+            'available_human' => $this->getAvailable()->toHumanReadable(),
+            'usage_percentage' => round($this->getUsagePercentage(), 2),
+            'is_almost_full' => $this->isAlmostFull(),
+        ];
+    }
+}