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/FeatureFlags/FeatureFlag.php

@@ -68,6 +68,17 @@ final readonly class FeatureFlag
     private function evaluateConditions(FeatureFlagContext $context): bool
     {
         foreach ($this->conditions as $key => $expectedValue) {
+            // Handle percentage rollout (e.g., percentage: 50)
+            if ($key === 'percentage' && is_numeric($expectedValue)) {
+                $hash = crc32($this->name . ':' . (string) $context->getUserId());
+                $userPercentage = abs($hash) % 100;
+                if ($userPercentage >= $expectedValue) {
+                    return false;
+                }
+
+                continue;
+            }
+
             $contextValue = $context->getValue($key);
 
             if ($contextValue === null) {
@@ -83,17 +94,6 @@ final readonly class FeatureFlag
                 continue;
             }
 
-            // Handle percentage rollout (e.g., percentage: 50)
-            if ($key === 'percentage' && is_numeric($expectedValue)) {
-                $hash = crc32($this->name . ':' . (string) $context->getUserId());
-                $userPercentage = abs($hash) % 100;
-                if ($userPercentage >= $expectedValue) {
-                    return false;
-                }
-
-                continue;
-            }
-
             // Exact match
             if ($contextValue !== $expectedValue) {
                 return false;