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/Unit/Framework/StateManagement/EncryptionTransformerTest.php

@@ -0,0 +1,197 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Framework\StateManagement\Transformers\EncryptionTransformer;
+use App\Framework\StateManagement\SerializableState;
+use App\Framework\LiveComponents\Serialization\EncryptedStateSerializer;
+use App\Framework\LiveComponents\Serialization\StateEncryptor;
+use App\Framework\Cryptography\CryptographicUtilities;
+use App\Framework\Random\SecureRandomGenerator;
+
+// Test State for transformer tests
+final readonly class TransformerTestState implements SerializableState
+{
+    public function __construct(
+        public string $name,
+        public int $value
+    ) {
+    }
+
+    public function toArray(): array
+    {
+        return [
+            'name' => $this->name,
+            'value' => $this->value,
+        ];
+    }
+
+    public static function fromArray(array $data): self
+    {
+        return new self(
+            name: $data['name'] ?? '',
+            value: $data['value'] ?? 0
+        );
+    }
+}
+
+describe('EncryptionTransformer', function () {
+    beforeEach(function () {
+        $random = new SecureRandomGenerator();
+        $crypto = new CryptographicUtilities($random);
+        $encryptionKey = $random->bytes(SODIUM_CRYPTO_SECRETBOX_KEYBYTES);
+
+        $encryptor = new StateEncryptor($encryptionKey, $crypto, $random);
+        $serializer = new EncryptedStateSerializer($encryptor);
+
+        $this->transformer = new EncryptionTransformer(
+            $serializer,
+            TransformerTestState::class
+        );
+
+        $this->testState = new TransformerTestState(
+            name: 'Test User',
+            value: 42
+        );
+    });
+
+    it('has correct name', function () {
+        expect($this->transformer->getName())->toBe('encryption');
+    });
+
+    it('has medium priority', function () {
+        expect($this->transformer->getPriority())->toBe(50);
+    });
+
+    it('transforms state to encrypted string', function () {
+        $transformed = $this->transformer->transformIn($this->testState);
+
+        expect($transformed)->toBeString();
+        expect($transformed)->not->toBeEmpty();
+
+        // Should be base64-encoded encrypted data
+        $decoded = base64_decode($transformed, strict: true);
+        expect($decoded)->not->toBeFalse();
+    });
+
+    it('transforms encrypted string back to state', function () {
+        $encrypted = $this->transformer->transformIn($this->testState);
+        $state = $this->transformer->transformOut($encrypted);
+
+        expect($state)->toBeInstanceOf(TransformerTestState::class);
+        expect($state->name)->toBe('Test User');
+        expect($state->value)->toBe(42);
+    });
+
+    it('round-trip transformation preserves state', function () {
+        $original = new TransformerTestState(
+            name: 'Round Trip Test',
+            value: 999
+        );
+
+        $encrypted = $this->transformer->transformIn($original);
+        $restored = $this->transformer->transformOut($encrypted);
+
+        expect($restored)->toBeInstanceOf(TransformerTestState::class);
+        expect($restored->name)->toBe($original->name);
+        expect($restored->value)->toBe($original->value);
+    });
+
+    it('throws exception for non-string data in transformOut', function () {
+        $this->transformer->transformOut(['not' => 'string']);
+    })->throws(\InvalidArgumentException::class, 'expects string data');
+
+    it('throws exception for non-SerializableState in transformOut', function () {
+        // Create invalid encrypted data that decrypts to non-SerializableState
+        // This would happen if stateClass is wrong
+        $transformer = new EncryptionTransformer(
+            $this->transformer->serializer,
+            \stdClass::class  // Wrong class
+        );
+
+        $encrypted = $this->transformer->transformIn($this->testState);
+
+        $transformer->transformOut($encrypted);
+    })->throws(\RuntimeException::class, 'must implement SerializableState');
+
+    it('produces different encrypted output for same state', function () {
+        $encrypted1 = $this->transformer->transformIn($this->testState);
+        $encrypted2 = $this->transformer->transformIn($this->testState);
+
+        // Should be different due to unique nonces
+        expect($encrypted1)->not->toBe($encrypted2);
+
+        // But both should decrypt to same state
+        $state1 = $this->transformer->transformOut($encrypted1);
+        $state2 = $this->transformer->transformOut($encrypted2);
+
+        expect($state1->name)->toBe($state2->name);
+        expect($state1->value)->toBe($state2->value);
+    });
+
+    it('handles state with special characters', function () {
+        $state = new TransformerTestState(
+            name: "Special: 🔐 <script>alert('xss')</script>",
+            value: 123
+        );
+
+        $encrypted = $this->transformer->transformIn($state);
+        $restored = $this->transformer->transformOut($encrypted);
+
+        expect($restored->name)->toBe($state->name);
+    });
+});
+
+describe('EncryptionTransformer Integration', function () {
+    it('works in transformer pipeline with multiple transformers', function () {
+        // Simulate transformer pipeline
+        $random = new SecureRandomGenerator();
+        $crypto = new CryptographicUtilities($random);
+        $encryptionKey = $random->bytes(SODIUM_CRYPTO_SECRETBOX_KEYBYTES);
+
+        $encryptor = new StateEncryptor($encryptionKey, $crypto, $random);
+        $serializer = new EncryptedStateSerializer($encryptor);
+
+        $encryptionTransformer = new EncryptionTransformer(
+            $serializer,
+            TransformerTestState::class
+        );
+
+        $state = new TransformerTestState('Pipeline Test', 789);
+
+        // transformIn pipeline (high to low priority)
+        $data = $encryptionTransformer->transformIn($state);
+
+        // transformOut pipeline (reverse order)
+        $restored = $encryptionTransformer->transformOut($data);
+
+        expect($restored)->toBeInstanceOf(TransformerTestState::class);
+        expect($restored->name)->toBe('Pipeline Test');
+        expect($restored->value)->toBe(789);
+    });
+
+    it('maintains type safety through transformation', function () {
+        $random = new SecureRandomGenerator();
+        $crypto = new CryptographicUtilities($random);
+        $encryptionKey = $random->bytes(SODIUM_CRYPTO_SECRETBOX_KEYBYTES);
+
+        $encryptor = new StateEncryptor($encryptionKey, $crypto, $random);
+        $serializer = new EncryptedStateSerializer($encryptor);
+
+        $transformer = new EncryptionTransformer(
+            $serializer,
+            TransformerTestState::class
+        );
+
+        $state = new TransformerTestState('Type Safety', 0);
+
+        $encrypted = $transformer->transformIn($state);
+        $restored = $transformer->transformOut($encrypted);
+
+        // Type checks
+        expect($restored)->toBeInstanceOf(SerializableState::class);
+        expect($restored)->toBeInstanceOf(TransformerTestState::class);
+        expect($restored->value)->toBeInt();
+        expect($restored->name)->toBeString();
+    });
+});