feat(Deployment): Integrate Ansible deployment via PHP deployment pipeline

- Create AnsibleDeployStage using framework's Process module for secure command execution
- Integrate AnsibleDeployStage into DeploymentPipelineCommands for production deployments
- Add force_deploy flag support in Ansible playbook to override stale locks
- Use PHP deployment module as orchestrator (php console.php deploy:production)
- Fix ErrorAggregationInitializer to use Environment class instead of $_ENV superglobal

Architecture:
- BuildStage → AnsibleDeployStage → HealthCheckStage for production
- Process module provides timeout, error handling, and output capture
- Ansible playbook supports rollback via rollback-git-based.yml
- Zero-downtime deployments with health checks

src/Framework/Mail/SmtpTransport.php

@@ -260,13 +260,14 @@ final class SmtpTransport implements TransportInterface
 
     private function buildMultipartAlternativeMessage(Message $message, array $lines): string
     {
-        $boundary = 'alt_' . uniqid();
+        $generator = new \App\Framework\Ulid\UlidGenerator();
+        $boundary = 'alt_' . $generator->generate();
 
         $lines[] = 'MIME-Version: 1.0';
 
         if ($message->hasAttachments()) {
             // Mixed with alternative inside
-            $mixedBoundary = 'mixed_' . uniqid();
+            $mixedBoundary = 'mixed_' . $generator->generate();
             $lines[] = 'Content-Type: multipart/mixed; boundary="' . $mixedBoundary . '"';
             $lines[] = '';
             $lines[] = '--' . $mixedBoundary;
@@ -291,7 +292,8 @@ final class SmtpTransport implements TransportInterface
 
     private function buildMultipartMixedMessage(Message $message, array $lines): string
     {
-        $boundary = 'mixed_' . uniqid();
+        $generator = new \App\Framework\Ulid\UlidGenerator();
+        $boundary = 'mixed_' . $generator->generate();
 
         $lines[] = 'MIME-Version: 1.0';
         $lines[] = 'Content-Type: multipart/mixed; boundary="' . $boundary . '"';
@@ -375,7 +377,8 @@ final class SmtpTransport implements TransportInterface
 
     private function generateMessageId(): string
     {
-        return uniqid() . '.' . time() . '@' . gethostname();
+        $generator = new \App\Framework\Ulid\UlidGenerator();
+        return $generator->generate() . '.' . time() . '@' . gethostname();
     }
 
     private function sendCommand(string $command): void
@@ -412,7 +415,8 @@ final class SmtpTransport implements TransportInterface
         }
 
         // Fallback to generated ID
-        return uniqid() . '@' . gethostname();
+        $generator = new \App\Framework\Ulid\UlidGenerator();
+        return $generator->generate() . '@' . gethostname();
     }
 
     private function disconnect(): void