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/Notification/Channels/WhatsApp/FixedPhoneNumberResolver.php

@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Framework\Notification\Channels\WhatsApp;
+
+use App\Framework\Core\ValueObjects\PhoneNumber;
+
+/**
+ * Fixed phone number resolver
+ *
+ * Returns a single hardcoded phone number for all users
+ * Useful for development/testing or single-user scenarios
+ */
+final readonly class FixedPhoneNumberResolver implements UserPhoneNumberResolver
+{
+    public function __construct(
+        private PhoneNumber $phoneNumber
+    ) {
+    }
+
+    /**
+     * Always returns the same phone number regardless of user ID
+     */
+    public function resolvePhoneNumber(string $userId): ?PhoneNumber
+    {
+        return $this->phoneNumber;
+    }
+
+    /**
+     * Create resolver with default phone number
+     */
+    public static function createDefault(): self
+    {
+        return new self(
+            phoneNumber: PhoneNumber::fromString('+4917941122213')
+        );
+    }
+}