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/Waf/MachineLearning/Extractors/FrequencyFeatureExtractor.php

@@ -5,15 +5,25 @@ declare(strict_types=1);
 namespace App\Framework\Waf\MachineLearning\Extractors;
 
 use App\Framework\Core\ValueObjects\Timestamp;
+use App\Framework\MachineLearning\Core\FeatureExtractorMetadata;
+use App\Framework\MachineLearning\Core\FeatureExtractorPerformance;
+use App\Framework\MachineLearning\ValueObjects\Feature;
+use App\Framework\MachineLearning\ValueObjects\FeatureType;
 use App\Framework\Waf\Analysis\ValueObjects\RequestAnalysisData;
-use App\Framework\Waf\MachineLearning\BehaviorType;
-use App\Framework\Waf\MachineLearning\FeatureExtractorInterface;
-use App\Framework\Waf\MachineLearning\ValueObjects\BehaviorFeature;
+use App\Framework\Waf\MachineLearning\WafFeatureExtractor;
 
 /**
  * Extracts request frequency and rate-based behavioral features
+ *
+ * Uses atomic interface composition pattern (NO extends):
+ * - WafFeatureExtractor: Domain-specific feature extraction
+ * - FeatureExtractorMetadata: Metadata and configuration
+ * - FeatureExtractorPerformance: Performance characteristics
  */
-final class FrequencyFeatureExtractor implements FeatureExtractorInterface
+final class FrequencyFeatureExtractor implements
+    WafFeatureExtractor,
+    FeatureExtractorMetadata,
+    FeatureExtractorPerformance
 {
     public function __construct(
         private readonly bool $enabled = true,
@@ -24,9 +34,9 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     ) {
     }
 
-    public function getBehaviorType(): BehaviorType
+    public function getFeatureType(): FeatureType
     {
-        return BehaviorType::REQUEST_FREQUENCY;
+        return FeatureType::FREQUENCY;
     }
 
     public function canExtract(RequestAnalysisData $requestData): bool
@@ -78,12 +88,12 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract basic request rate
      */
-    private function extractRequestRate(array $requests, int $windowSeconds): BehaviorFeature
+    private function extractRequestRate(array $requests, int $windowSeconds): Feature
     {
         $count = count($requests);
         $rate = $windowSeconds > 0 ? $count / $windowSeconds : 0.0;
 
-        return BehaviorFeature::frequency(
+        return Feature::frequency(
             name: "request_rate_{$windowSeconds}s",
             count: $count,
             timeWindow: $windowSeconds
@@ -93,11 +103,11 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract burst detection rate
      */
-    private function extractBurstRate(array $requests, int $windowSeconds): BehaviorFeature
+    private function extractBurstRate(array $requests, int $windowSeconds): Feature
     {
         if (count($requests) < 2) {
-            return BehaviorFeature::create(
-                type: $this->getBehaviorType(),
+            return Feature::create(
+                type: $this->getFeatureType(),
                 name: "burst_rate_{$windowSeconds}s",
                 value: 0.0,
                 unit: 'requests/second'
@@ -124,8 +134,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
             $maxRate = max($maxRate, $rate);
         }
 
-        return BehaviorFeature::create(
-            type: $this->getBehaviorType(),
+        return Feature::create(
+            type: $this->getFeatureType(),
             name: "burst_rate_{$windowSeconds}s",
             value: $maxRate,
             unit: 'requests/second'
@@ -135,7 +145,7 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract sustained rate (longer window)
      */
-    private function extractSustainedRate(array $requests, int $windowSeconds): BehaviorFeature
+    private function extractSustainedRate(array $requests, int $windowSeconds): Feature
     {
         $count = count($requests);
 
@@ -149,8 +159,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
         $sustainedCount = count($sustainedRequests);
         $rate = $windowSeconds > 0 ? $sustainedCount / $windowSeconds : 0.0;
 
-        return BehaviorFeature::create(
-            type: $this->getBehaviorType(),
+        return Feature::create(
+            type: $this->getFeatureType(),
             name: "sustained_rate_{$windowSeconds}s",
             value: $rate,
             unit: 'requests/second'
@@ -160,11 +170,11 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract inter-arrival time variance
      */
-    private function extractInterArrivalVariance(array $requests): BehaviorFeature
+    private function extractInterArrivalVariance(array $requests): Feature
     {
         if (count($requests) < 3) {
-            return BehaviorFeature::create(
-                type: $this->getBehaviorType(),
+            return Feature::create(
+                type: $this->getFeatureType(),
                 name: 'inter_arrival_variance',
                 value: 0.0,
                 unit: 'seconds²'
@@ -180,8 +190,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
             $interArrivals[] = $requests[$i] - $requests[$i - 1];
         }
 
-        return BehaviorFeature::statistical(
-            type: $this->getBehaviorType(),
+        return Feature::statistical(
+            type: $this->getFeatureType(),
             name: 'inter_arrival_variance',
             values: $interArrivals,
             statistic: 'variance'
@@ -191,11 +201,11 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract request spacing regularity
      */
-    private function extractRequestSpacing(array $requests): BehaviorFeature
+    private function extractRequestSpacing(array $requests): Feature
     {
         if (count($requests) < 3) {
-            return BehaviorFeature::create(
-                type: $this->getBehaviorType(),
+            return Feature::create(
+                type: $this->getFeatureType(),
                 name: 'request_spacing_regularity',
                 value: 0.0,
                 unit: 'coefficient'
@@ -211,8 +221,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
         }
 
         $mean = array_sum($interArrivals) / count($interArrivals);
-        $variance = BehaviorFeature::statistical(
-            type: $this->getBehaviorType(),
+        $variance = Feature::statistical(
+            type: $this->getFeatureType(),
             name: 'temp_variance',
             values: $interArrivals,
             statistic: 'variance'
@@ -221,8 +231,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
         // Coefficient of variation (lower = more regular)
         $regularity = $mean > 0 ? sqrt($variance) / $mean : 1.0;
 
-        return BehaviorFeature::create(
-            type: $this->getBehaviorType(),
+        return Feature::create(
+            type: $this->getFeatureType(),
             name: 'request_spacing_regularity',
             value: 1.0 / (1.0 + $regularity), // Normalize: 1 = perfectly regular, 0 = very irregular
             unit: 'regularity_score'
@@ -232,11 +242,11 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract periodicity score using autocorrelation
      */
-    private function extractPeriodicityScore(array $requests): BehaviorFeature
+    private function extractPeriodicityScore(array $requests): Feature
     {
         if (count($requests) < 10) {
-            return BehaviorFeature::create(
-                type: $this->getBehaviorType(),
+            return Feature::create(
+                type: $this->getFeatureType(),
                 name: 'periodicity_score',
                 value: 0.0,
                 unit: 'correlation'
@@ -251,8 +261,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
         $duration = $maxTime - $minTime;
 
         if ($duration <= 0) {
-            return BehaviorFeature::create(
-                type: $this->getBehaviorType(),
+            return Feature::create(
+                type: $this->getFeatureType(),
                 name: 'periodicity_score',
                 value: 0.0,
                 unit: 'correlation'
@@ -279,8 +289,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
             $maxCorrelation = max($maxCorrelation, abs($correlation));
         }
 
-        return BehaviorFeature::create(
-            type: $this->getBehaviorType(),
+        return Feature::create(
+            type: $this->getFeatureType(),
             name: 'periodicity_score',
             value: $maxCorrelation,
             unit: 'correlation'
@@ -290,11 +300,11 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract time of day pattern
      */
-    private function extractTimeOfDayPattern(array $requests): BehaviorFeature
+    private function extractTimeOfDayPattern(array $requests): Feature
     {
         if (empty($requests)) {
-            return BehaviorFeature::create(
-                type: $this->getBehaviorType(),
+            return Feature::create(
+                type: $this->getFeatureType(),
                 name: 'time_of_day_entropy',
                 value: 0.0,
                 unit: 'bits'
@@ -309,8 +319,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
             $hourDistribution[$hour]++;
         }
 
-        return BehaviorFeature::entropy(
-            type: $this->getBehaviorType(),
+        return Feature::entropy(
+            type: $this->getFeatureType(),
             name: 'time_of_day_entropy',
             distribution: $hourDistribution
         );
@@ -319,11 +329,11 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract weekday pattern
      */
-    private function extractWeekdayPattern(array $requests): BehaviorFeature
+    private function extractWeekdayPattern(array $requests): Feature
     {
         if (empty($requests)) {
-            return BehaviorFeature::create(
-                type: $this->getBehaviorType(),
+            return Feature::create(
+                type: $this->getFeatureType(),
                 name: 'weekday_entropy',
                 value: 0.0,
                 unit: 'bits'
@@ -338,8 +348,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
             $dayDistribution[$day]++;
         }
 
-        return BehaviorFeature::entropy(
-            type: $this->getBehaviorType(),
+        return Feature::entropy(
+            type: $this->getFeatureType(),
             name: 'weekday_entropy',
             distribution: $dayDistribution
         );
@@ -348,11 +358,11 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract frequency distribution entropy
      */
-    private function extractFrequencyEntropy(array $requests): BehaviorFeature
+    private function extractFrequencyEntropy(array $requests): Feature
     {
         if (count($requests) < 5) {
-            return BehaviorFeature::create(
-                type: $this->getBehaviorType(),
+            return Feature::create(
+                type: $this->getFeatureType(),
                 name: 'frequency_entropy',
                 value: 0.0,
                 unit: 'bits'
@@ -369,8 +379,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
             $buckets[$bucket] = ($buckets[$bucket] ?? 0) + 1;
         }
 
-        return BehaviorFeature::entropy(
-            type: $this->getBehaviorType(),
+        return Feature::entropy(
+            type: $this->getFeatureType(),
             name: 'frequency_entropy',
             distribution: array_values($buckets)
         );
@@ -379,11 +389,11 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
     /**
      * Extract burstiness measure
      */
-    private function extractBurstiness(array $requests): BehaviorFeature
+    private function extractBurstiness(array $requests): Feature
     {
         if (count($requests) < 5) {
-            return BehaviorFeature::create(
-                type: $this->getBehaviorType(),
+            return Feature::create(
+                type: $this->getFeatureType(),
                 name: 'burstiness',
                 value: 0.0,
                 unit: 'burstiness_coefficient'
@@ -399,8 +409,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
         }
 
         $mean = array_sum($interArrivals) / count($interArrivals);
-        $variance = BehaviorFeature::statistical(
-            type: $this->getBehaviorType(),
+        $variance = Feature::statistical(
+            type: $this->getFeatureType(),
             name: 'temp_variance',
             values: $interArrivals,
             statistic: 'variance'
@@ -411,8 +421,8 @@ final class FrequencyFeatureExtractor implements FeatureExtractorInterface
         $stdDev = sqrt($variance);
         $burstiness = ($stdDev + $mean) > 0 ? ($stdDev - $mean) / ($stdDev + $mean) : 0.0;
 
-        return BehaviorFeature::create(
-            type: $this->getBehaviorType(),
+        return Feature::create(
+            type: $this->getFeatureType(),
             name: 'burstiness',
             value: $burstiness,
             unit: 'burstiness_coefficient'