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/debug/test-nullable-bool-flags.php

@@ -0,0 +1,120 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Test script for nullable bool flags
+ */
+
+require_once __DIR__ . '/../../vendor/autoload.php';
+
+use App\Framework\Console\CommandParameterResolver;
+use App\Framework\Console\ConsoleOutput;
+use App\Framework\Console\MethodSignatureAnalyzer;
+
+// Test class with nullable bool flags
+class FlagTestCommand
+{
+    // Nullable bool flags
+    public function withFlags(
+        string $environment,
+        ?bool $verbose = null,
+        ?bool $force = null,
+        ?bool $dryRun = null
+    ): int {
+        echo "Environment: {$environment}\n";
+        echo "Verbose: " . ($verbose === null ? 'null' : ($verbose ? 'true' : 'false')) . "\n";
+        echo "Force: " . ($force === null ? 'null' : ($force ? 'true' : 'false')) . "\n";
+        echo "DryRun: " . ($dryRun === null ? 'null' : ($dryRun ? 'true' : 'false')) . "\n";
+        return 0;
+    }
+
+    // Mixed: typed params + flags
+    public function mixedWithFlags(
+        string $name,
+        int $age,
+        ?bool $verified = null,
+        ?bool $active = null
+    ): int {
+        echo "Name: {$name}, Age: {$age}\n";
+        echo "Verified: " . ($verified === null ? 'null' : ($verified ? 'true' : 'false')) . "\n";
+        echo "Active: " . ($active === null ? 'null' : ($active ? 'true' : 'false')) . "\n";
+        return 0;
+    }
+}
+
+echo "Testing Nullable Bool Flags\n";
+echo "===========================\n\n";
+
+$resolver = new CommandParameterResolver(new MethodSignatureAnalyzer());
+$command = new FlagTestCommand();
+$output = new ConsoleOutput();
+
+// Test 1: No flags provided
+echo "Test 1: No flags (all should be null)\n";
+echo "Command: deploy production\n";
+$method = new ReflectionMethod(FlagTestCommand::class, 'withFlags');
+$params = $resolver->resolveParameters($method, ['production'], null, $output);
+echo "Resolved params count: " . count($params) . "\n";
+$result = $method->invokeArgs($command, $params);
+echo "Result: {$result}\n\n";
+
+// Test 2: One flag provided
+echo "Test 2: One flag --verbose\n";
+echo "Command: deploy production --verbose\n";
+$method = new ReflectionMethod(FlagTestCommand::class, 'withFlags');
+$params = $resolver->resolveParameters($method, ['production', '--verbose'], null, $output);
+echo "Resolved params count: " . count($params) . "\n";
+$result = $method->invokeArgs($command, $params);
+echo "Result: {$result}\n\n";
+
+// Test 3: Multiple flags
+echo "Test 3: Multiple flags --verbose --force\n";
+echo "Command: deploy production --verbose --force\n";
+$method = new ReflectionMethod(FlagTestCommand::class, 'withFlags');
+$params = $resolver->resolveParameters($method, ['production', '--verbose', '--force'], null, $output);
+echo "Resolved params count: " . count($params) . "\n";
+$result = $method->invokeArgs($command, $params);
+echo "Result: {$result}\n\n";
+
+// Test 4: All flags
+echo "Test 4: All flags --verbose --force --dry-run\n";
+echo "Command: deploy production --verbose --force --dry-run\n";
+$method = new ReflectionMethod(FlagTestCommand::class, 'withFlags');
+$params = $resolver->resolveParameters($method, ['production', '--verbose', '--force', '--dry-run'], null, $output);
+echo "Resolved params count: " . count($params) . "\n";
+$result = $method->invokeArgs($command, $params);
+echo "Result: {$result}\n\n";
+
+// Test 5: Mixed params + flags (no flags)
+echo "Test 5: Mixed parameters without flags\n";
+echo "Command: user Alice 25\n";
+$method = new ReflectionMethod(FlagTestCommand::class, 'mixedWithFlags');
+$params = $resolver->resolveParameters($method, ['Alice', '25'], null, $output);
+echo "Resolved params count: " . count($params) . "\n";
+$result = $method->invokeArgs($command, $params);
+echo "Result: {$result}\n\n";
+
+// Test 6: Mixed params + flags (with flags)
+echo "Test 6: Mixed parameters with flags\n";
+echo "Command: user Alice 25 --verified --active\n";
+$method = new ReflectionMethod(FlagTestCommand::class, 'mixedWithFlags');
+$params = $resolver->resolveParameters($method, ['Alice', '25', '--verified', '--active'], null, $output);
+echo "Resolved params count: " . count($params) . "\n";
+$result = $method->invokeArgs($command, $params);
+echo "Result: {$result}\n\n";
+
+// Test 7: Mixed params + one flag
+echo "Test 7: Mixed parameters with one flag\n";
+echo "Command: user Bob 30 --verified\n";
+$method = new ReflectionMethod(FlagTestCommand::class, 'mixedWithFlags');
+$params = $resolver->resolveParameters($method, ['Bob', '30', '--verified'], null, $output);
+echo "Resolved params count: " . count($params) . "\n";
+$result = $method->invokeArgs($command, $params);
+echo "Result: {$result}\n\n";
+
+echo "✅ All tests completed!\n";
+echo "\nExpected behavior:\n";
+echo "- Flags without '--' prefix: null\n";
+echo "- Flags with '--' prefix: true\n";
+echo "- No boolean false (only null or true)\n";