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/debug/test-error-pipeline-debug.php

@@ -0,0 +1,202 @@
+<?php
+
+declare(strict_types=1);
+
+require_once __DIR__ . '/../../vendor/autoload.php';
+
+use App\Framework\Cache\Cache;
+use App\Framework\Cache\CacheIdentifier;
+use App\Framework\Cache\CacheKey;
+use App\Framework\Cache\CacheItem;
+use App\Framework\Cache\CacheResult;
+use App\Framework\Core\ValueObjects\Duration;
+use App\Framework\DateTime\SystemClock;
+use App\Framework\ErrorAggregation\ErrorAggregator;
+use App\Framework\ErrorAggregation\Storage\InMemoryErrorStorage;
+use App\Framework\ErrorHandling\ErrorHandler;
+use App\Framework\ErrorReporting\ErrorReporter;
+use App\Framework\ErrorReporting\Storage\InMemoryErrorReportStorage;
+use App\Framework\Exception\Core\DatabaseErrorCode;
+use App\Framework\Exception\FrameworkException;
+use App\Framework\Http\RequestIdGenerator;
+use App\Framework\Http\ResponseEmitter;
+use App\Framework\DI\DefaultContainer;
+use App\Framework\Queue\InMemoryQueue;
+
+// Create all dependencies
+$container = new DefaultContainer();
+$emitter = new ResponseEmitter();
+$requestIdGenerator = new RequestIdGenerator();
+
+// Error Aggregation setup
+$errorStorage = new InMemoryErrorStorage();
+$cache = new class implements Cache {
+    private array $data = [];
+
+    public function get(CacheIdentifier ...$identifiers): CacheResult
+    {
+        $items = [];
+        foreach ($identifiers as $identifier) {
+            $keyStr = $identifier->toString();
+            if (isset($this->data[$keyStr])) {
+                $items[] = $this->data[$identifier->toString()];
+            } else {
+                $items[] = CacheItem::miss($identifier instanceof CacheKey ? $identifier : CacheKey::fromString($identifier->toString()));
+            }
+        }
+
+        return count($items) === 1
+            ? CacheResult::single($items[0])
+            : CacheResult::multiple($items);
+    }
+
+    public function set(CacheItem ...$items): bool
+    {
+        foreach ($items as $item) {
+            $this->data[$item->key->toString()] = $item;
+        }
+        return true;
+    }
+
+    public function has(CacheIdentifier ...$identifiers): array
+    {
+        $result = [];
+        foreach ($identifiers as $identifier) {
+            $result[] = isset($this->data[$identifier->toString()]);
+        }
+        return $result;
+    }
+
+    public function forget(CacheIdentifier ...$identifiers): bool
+    {
+        foreach ($identifiers as $identifier) {
+            unset($this->data[$identifier->toString()]);
+        }
+        return true;
+    }
+
+    public function clear(): bool
+    {
+        $this->data = [];
+        return true;
+    }
+
+    public function remember(CacheKey $key, callable $callback, ?Duration $ttl = null): CacheItem
+    {
+        $keyStr = $key->toString();
+        if (isset($this->data[$keyStr])) {
+            return $this->data[$keyStr];
+        }
+
+        $value = $callback();
+        $item = $ttl ? CacheItem::forSetting($key, $value, $ttl) : CacheItem::miss($key);
+        $this->data[$keyStr] = $item;
+        return $item;
+    }
+};
+$clock = new SystemClock();
+$alertQueue = new InMemoryQueue();
+
+$errorAggregator = new ErrorAggregator(
+    storage: $errorStorage,
+    cache: $cache,
+    clock: $clock,
+    alertQueue: $alertQueue,
+    logger: null,
+    batchSize: 100,
+    maxRetentionDays: 90
+);
+
+// Error Reporting setup
+$errorReportStorage = new InMemoryErrorReportStorage();
+$reportQueue = new InMemoryQueue();
+
+$errorReporter = new ErrorReporter(
+    storage: $errorReportStorage,
+    clock: $clock,
+    logger: null,
+    queue: $reportQueue,
+    asyncProcessing: false,
+    processors: [],
+    filters: []
+);
+
+// Create ErrorHandler
+$errorHandler = new ErrorHandler(
+    emitter: $emitter,
+    container: $container,
+    requestIdGenerator: $requestIdGenerator,
+    errorAggregator: $errorAggregator,
+    errorReporter: $errorReporter,
+    logger: null,
+    isDebugMode: true,
+    securityHandler: null
+);
+
+echo "=== Testing Error Pipeline ===\n\n";
+
+// Create test exception
+$exception = FrameworkException::create(
+    DatabaseErrorCode::QUERY_FAILED,
+    'Test database error'
+);
+
+echo "1. Creating ErrorHandlerContext manually...\n";
+$errorHandlerContext = (new \ReflectionClass($errorHandler))->getMethod('createErrorHandlerContext')->invoke($errorHandler, $exception, null);
+echo "   Context created successfully\n";
+echo "   ExceptionContext: operation={$errorHandlerContext->exception->operation}, component={$errorHandlerContext->exception->component}\n";
+
+echo "\n2. Testing ErrorEvent::fromErrorHandlerContext...\n";
+try {
+    $errorEvent = \App\Framework\ErrorAggregation\ErrorEvent::fromErrorHandlerContext($errorHandlerContext, $clock);
+    echo "   ErrorEvent created successfully\n";
+    echo "   Event ID: {$errorEvent->id}\n";
+    echo "   Event message: {$errorEvent->errorMessage}\n";
+} catch (\Throwable $e) {
+    echo "   EXCEPTION in fromErrorHandlerContext: " . $e->getMessage() . "\n";
+    echo "   AT: " . $e->getFile() . ":" . $e->getLine() . "\n";
+    echo "   TRACE:\n";
+    foreach ($e->getTrace() as $frame) {
+        $file = $frame['file'] ?? 'unknown';
+        $line = $frame['line'] ?? 0;
+        $function = $frame['function'] ?? 'unknown';
+        echo "      $file:$line - $function()\n";
+    }
+    exit(1);
+}
+
+echo "\n3. Testing ErrorAggregator.processError directly...\n";
+try {
+    $errorAggregator->processError($errorHandlerContext);
+    echo "   processError completed successfully\n";
+} catch (\Throwable $e) {
+    echo "   EXCEPTION in processError: " . $e->getMessage() . "\n";
+    echo "   AT: " . $e->getFile() . ":" . $e->getLine() . "\n";
+    throw $e;
+}
+
+echo "\n3. Creating HTTP response from exception...\n";
+$response = $errorHandler->createHttpResponse($exception);
+
+echo "\n4. Checking ErrorAggregator storage...\n";
+$events = $errorStorage->getRecentEvents(10);
+echo "   Events stored: " . count($events) . "\n";
+if (count($events) > 0) {
+    echo "   First event message: " . $events[0]->message . "\n";
+    echo "   First event severity: " . $events[0]->severity->value . "\n";
+} else {
+    echo "   No events stored!\n";
+}
+
+echo "\n3. Checking ErrorReporter storage...\n";
+$reports = $errorReportStorage->findRecent(10);
+echo "   Reports stored: " . count($reports) . "\n";
+if (count($reports) > 0) {
+    echo "   First report message: " . $reports[0]->message . "\n";
+    echo "   First report exception: " . $reports[0]->exception . "\n";
+    echo "   First report level: " . $reports[0]->level . "\n";
+} else {
+    echo "   No reports stored!\n";
+}
+
+echo "\n=== Test Complete ===\n";