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/Framework/Router/ValueObjects/PlaceholderTest.php

@@ -32,13 +32,13 @@ describe('Placeholder', function () {
         });
 
         it('validates placeholder names', function () {
-            expect(fn() => Placeholder::fromString(''))
+            expect(fn () => Placeholder::fromString(''))
                 ->toThrow(InvalidArgumentException::class);
 
-            expect(fn() => Placeholder::fromString('123invalid'))
+            expect(fn () => Placeholder::fromString('123invalid'))
                 ->toThrow(InvalidArgumentException::class);
 
-            expect(fn() => Placeholder::fromString('invalid-name'))
+            expect(fn () => Placeholder::fromString('invalid-name'))
                 ->toThrow(InvalidArgumentException::class);
         });
 
@@ -101,4 +101,4 @@ describe('Placeholder', function () {
             expect($typed->getPattern())->toBe('(\d+)');
         });
     });
-});
+});