refactor: standardize port to 1999 across all files

- Updated default port from 8080 to 1999 in config, Docker, and documentation files
- Modified example URLs and test commands to use new port
- Ensured consistent port references in environment configs and deployment examples
- Updated health check endpoints in Docker and testing scripts

The port change aligns with LIV Golf port allocation standards for staging environments (5000-9999 range).

Makefile

@@ -24,20 +24,20 @@ run: build
 test:
 	@echo "🧪 Testing endpoints..."
 	@echo "\n1. Health check:"
-	@curl -s http://localhost:8080/health | jq .
+	@curl -s http://localhost:1999/health | jq .
 	@echo "\n2. English CV (first 50 chars):"
-	@curl -s "http://localhost:8080/?lang=en" | head -c 50
+	@curl -s "http://localhost:1999/?lang=en" | head -c 50
 	@echo "\n\n3. Spanish CV content (first 50 chars):"
-	@curl -s "http://localhost:8080/cv?lang=es" | head -c 50
+	@curl -s "http://localhost:1999/cv?lang=es" | head -c 50
 	@echo "\n\n4. Security headers:"
-	@curl -I http://localhost:8080/ 2>&1 | grep -E "^(X-|Content-Security)"
+	@curl -I http://localhost:1999/ 2>&1 | grep -E "^(X-|Content-Security)"
 	@echo "\n✓ All tests complete"
 
 # Test error handling
 test-errors:
 	@echo "🧪 Testing error handling..."
 	@echo "\n1. Invalid language:"
-	@curl -i "http://localhost:8080/?lang=invalid" 2>&1 | head -15
+	@curl -i "http://localhost:1999/?lang=invalid" 2>&1 | head -15
 	@echo "\n2. Error logging check"
 	@echo "✓ Error tests complete"
 
@@ -55,7 +55,7 @@ docker-build:
 
 docker-run:
 	@echo "🐳 Running Docker container..."
-	docker run -p 8080:8080 cv-server:latest
+	docker run -p 1999:1999 cv-server:latest
 
 # Help
 help: