refactor: [shitty claude AI first try] restructure server and user services, add new test cases, and improve error handling

Makefile

@@ -0,0 +1,166 @@
+# Go Test Makefile
+
+.PHONY: test test-unit test-integration test-coverage test-race test-verbose test-short clean-test lint fmt build
+
+# Default target
+all: test
+
+# Run all tests
+test:
+	go test ./...
+
+# Run only unit tests (excluding integration tests)
+test-unit:
+	go test -short ./...
+
+# Run integration tests
+test-integration:
+	go test -run TestIntegration ./test/integration/...
+
+# Run tests with coverage
+test-coverage:
+	go test -cover ./...
+
+# Generate detailed coverage report
+test-coverage-html:
+	go test -coverprofile=coverage.out ./...
+	go tool cover -html=coverage.out -o coverage.html
+	@echo "Coverage report generated: coverage.html"
+
+# Run tests with race detection
+test-race:
+	go test -race ./...
+
+# Run tests in verbose mode
+test-verbose:
+	go test -v ./...
+
+# Run tests with short timeout (for CI/CD)
+test-short:
+	go test -short -timeout=60s ./...
+
+# Run specific test
+test-specific:
+	@read -p "Enter test name pattern: " pattern; \
+	go test -run $$pattern ./...
+
+# Run benchmark tests
+test-bench:
+	go test -bench=. ./...
+
+# Run tests for specific package
+test-pkg:
+	@read -p "Enter package path: " pkg; \
+	go test ./$$pkg
+
+# Clean test cache and temporary files
+clean-test:
+	go clean -testcache
+	rm -f coverage.out coverage.html
+
+# Lint code
+lint:
+	go vet ./...
+	@if command -v golangci-lint >/dev/null 2>&1; then \
+		golangci-lint run; \
+	else \
+		echo "golangci-lint not installed. Installing..."; \
+		go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest; \
+		golangci-lint run; \
+	fi
+
+# Format code
+fmt:
+	go fmt ./...
+
+# Build the application
+build:
+	go build ./...
+
+# Run tests in watch mode (requires entr)
+test-watch:
+	@if command -v entr >/dev/null 2>&1; then \
+		find . -name "*.go" | entr -c go test ./...; \
+	else \
+		echo "entr not installed. Please install it to use watch mode."; \
+		echo "On macOS: brew install entr"; \
+		echo "On Ubuntu: apt-get install entr"; \
+	fi
+
+# Generate test mocks (if using mockgen)
+generate-mocks:
+	@if command -v mockgen >/dev/null 2>&1; then \
+		go generate ./...; \
+	else \
+		echo "mockgen not installed. Installing..."; \
+		go install github.com/golang/mock/mockgen@latest; \
+		go generate ./...; \
+	fi
+
+# Setup test environment
+setup-test:
+	go mod tidy
+	go mod download
+
+# Run tests with JSON output for CI/CD
+test-json:
+	go test -json ./... > test-results.json
+
+# Check test coverage threshold
+test-coverage-check:
+	@coverage=$$(go test -cover ./... | grep "coverage:" | awk '{print $$3}' | sed 's/%//' | awk '{sum+=$$1; count++} END {print sum/count}'); \
+	threshold=80; \
+	if [ "$$(echo "$$coverage >= $$threshold" | bc -l)" -eq 1 ]; then \
+		echo "Coverage $$coverage% meets threshold of $$threshold%"; \
+	else \
+		echo "Coverage $$coverage% below threshold of $$threshold%"; \
+		exit 1; \
+	fi
+
+# Run tests with profiling
+test-profile:
+	go test -cpuprofile=cpu.prof -memprofile=mem.prof ./...
+	@echo "Profile files generated: cpu.prof, mem.prof"
+	@echo "View CPU profile: go tool pprof cpu.prof"
+	@echo "View Memory profile: go tool pprof mem.prof"
+
+# Test specific layers
+test-domain:
+	go test ./internal/api/*/domain/...
+
+test-repo:
+	go test ./internal/api/*/repo/...
+
+test-service:
+	go test ./internal/api/*/service/...
+
+test-handler:
+	go test ./internal/api/*/handler/...
+
+test-utils:
+	go test ./internal/phoneutil/... ./test/testutil/...
+
+# Help target
+help:
+	@echo "Available targets:"
+	@echo "  test              - Run all tests"
+	@echo "  test-unit         - Run unit tests only"
+	@echo "  test-integration  - Run integration tests"
+	@echo "  test-coverage     - Run tests with coverage"
+	@echo "  test-coverage-html- Generate HTML coverage report"
+	@echo "  test-race         - Run tests with race detection"
+	@echo "  test-verbose      - Run tests in verbose mode"
+	@echo "  test-short        - Run tests with short timeout"
+	@echo "  test-bench        - Run benchmark tests"
+	@echo "  test-watch        - Run tests in watch mode"
+	@echo "  clean-test        - Clean test cache and files"
+	@echo "  lint              - Run linters"
+	@echo "  fmt               - Format code"
+	@echo "  build             - Build application"
+	@echo "  setup-test        - Setup test environment"
+	@echo "  test-domain       - Test domain layer only"
+	@echo "  test-service      - Test service layer only"
+	@echo "  test-handler      - Test handler layer only"
+	@echo "  test-repo         - Test repository layer only"
+	@echo "  test-utils        - Test utility packages"
+	@echo "  help              - Show this help message"