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/Filesystem/Traits/InMemoryStreamableStorageTrait.php

@@ -0,0 +1,183 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Framework\Filesystem\Traits;
+
+use App\Framework\Filesystem\Exceptions\FileNotFoundException;
+use App\Framework\Filesystem\Exceptions\FileReadException;
+use App\Framework\Filesystem\Exceptions\FileWriteException;
+use Generator;
+
+/**
+ * Trait für Stream-basierte In-Memory Storage-Operationen
+ *
+ * Implementiert Stream-Funktionalität für In-Memory Storage
+ * ohne echte File-Handles. Nutzt php://temp für Stream-Kompatibilität
+ * und schreibt Daten in das interne $files Array.
+ */
+trait InMemoryStreamableStorageTrait
+{
+    /**
+     * Array mit Datei-Inhalten
+     * @var array<string, string>
+     */
+    abstract protected function getFilesArray(): array;
+
+    /**
+     * Setzt Datei-Inhalt im Array
+     */
+    abstract protected function setFileContent(string $path, string $content): void;
+
+    /**
+     * Prüft ob Datei existiert
+     */
+    abstract public function exists(string $path): bool;
+
+    /**
+     * Erstellt Verzeichnis falls nötig
+     */
+    abstract public function createDirectory(string $path, int $permissions = 0755, bool $recursive = true): void;
+
+    /**
+     * Öffnet einen Read-Stream für eine In-Memory Datei
+     *
+     * @return resource
+     */
+    public function readStream(string $path)
+    {
+        if (!$this->exists($path)) {
+            throw new FileNotFoundException($path);
+        }
+
+        $files = $this->getFilesArray();
+        $content = $files[$path];
+
+        $stream = fopen('php://temp', 'r+');
+        if ($stream === false) {
+            throw new FileReadException($path);
+        }
+
+        fwrite($stream, $content);
+        rewind($stream);
+
+        return $stream;
+    }
+
+    /**
+     * Öffnet einen Write-Stream für eine In-Memory Datei
+     *
+     * Der Stream muss manuell mit putStream() oder durch StreamWriter.close()
+     * persistiert werden, sonst gehen die Daten verloren.
+     *
+     * @return resource
+     */
+    public function writeStream(string $path)
+    {
+        $dir = dirname($path);
+        if ($dir !== '.' && $dir !== '/') {
+            $this->createDirectory($dir);
+        }
+
+        $stream = fopen('php://temp', 'r+');
+        if ($stream === false) {
+            throw new FileWriteException($path);
+        }
+
+        // Speichere Pfad als Stream-Metadaten für spätere Verwendung
+        stream_context_set_params($stream, ['inmemory_path' => $path]);
+
+        return $stream;
+    }
+
+    /**
+     * Öffnet einen Append-Stream für eine In-Memory Datei
+     *
+     * @return resource
+     */
+    public function appendStream(string $path)
+    {
+        if (!$this->exists($path)) {
+            throw new FileNotFoundException($path);
+        }
+
+        $files = $this->getFilesArray();
+        $existingContent = $files[$path];
+
+        $stream = fopen('php://temp', 'r+');
+        if ($stream === false) {
+            throw new FileWriteException($path);
+        }
+
+        // Schreibe existierenden Inhalt
+        fwrite($stream, $existingContent);
+
+        // Cursor ans Ende bewegen für Append
+        fseek($stream, 0, SEEK_END);
+
+        // Speichere Pfad als Stream-Metadaten
+        stream_context_set_params($stream, ['inmemory_path' => $path]);
+
+        return $stream;
+    }
+
+    /**
+     * Schreibt Stream-Inhalt in In-Memory Datei
+     *
+     * @param resource $stream
+     */
+    public function putStream(string $path, $stream): void
+    {
+        $dir = dirname($path);
+        if ($dir !== '.' && $dir !== '/') {
+            $this->createDirectory($dir);
+        }
+
+        // Stream an Anfang bewegen
+        rewind($stream);
+
+        // Gesamten Stream-Inhalt lesen
+        $content = stream_get_contents($stream);
+        if ($content === false) {
+            throw new FileWriteException($path);
+        }
+
+        // In In-Memory Array speichern
+        $this->setFileContent($path, $content);
+    }
+
+    /**
+     * Kopiert Datei Stream-basiert (In-Memory)
+     */
+    public function copyStream(string $source, string $destination): void
+    {
+        if (!$this->exists($source)) {
+            throw new FileNotFoundException($source);
+        }
+
+        $sourceStream = $this->readStream($source);
+        $this->putStream($destination, $sourceStream);
+        fclose($sourceStream);
+    }
+
+    /**
+     * Liest Datei Zeile für Zeile (Generator für Memory-Effizienz)
+     *
+     * @return Generator<string>
+     */
+    public function readLines(string $path): Generator
+    {
+        if (!$this->exists($path)) {
+            throw new FileNotFoundException($path);
+        }
+
+        $files = $this->getFilesArray();
+        $content = $files[$path];
+
+        // Split by newline and yield
+        $lines = explode("\n", $content);
+        foreach ($lines as $line) {
+            yield rtrim($line, "\r");
+        }
+    }
+}

src/Framework/Filesystem/Traits/StreamableStorageTrait.php

@@ -7,6 +7,7 @@ namespace App\Framework\Filesystem\Traits;
 use App\Framework\Filesystem\Exceptions\FileNotFoundException;
 use App\Framework\Filesystem\Exceptions\FileReadException;
 use App\Framework\Filesystem\Exceptions\FileWriteException;
+use Generator;
 
 /**
  * Trait für Stream-basierte Storage-Operationen
@@ -83,7 +84,7 @@ trait StreamableStorageTrait
         @fclose($sourceStream);
     }
 
-    public function readLines(string $path): \Generator
+    public function readLines(string $path): Generator
     {
         $stream = $this->readStream($path);