Delete backend/Makefile

backend/Makefile

-.PHONY: wire build build-embed test-unit test-integration test-e2e test-cover-integration
-
-wire:
-	@echo "生成 Wire 代码..."
-	@cd cmd/server && go generate
-	@echo "Wire 代码生成完成"
-
-build:
-	@echo "构建后端（不嵌入前端）..."
-	@go build -o bin/server ./cmd/server
-	@echo "构建完成: bin/server"
-
-build-embed:
-	@echo "构建后端（嵌入前端）..."
-	@go build -tags embed -o bin/server ./cmd/server
-	@echo "构建完成: bin/server (with embedded frontend)"
-
-test-unit:
-	@go test -tags unit ./... -count=1
-
-test-integration:
-	@go test -tags integration ./... -count=1 -race -parallel=8
-
-test-e2e:
-	@echo "运行 E2E 测试（需要本地服务器运行）..."
-	@go test -tags e2e ./internal/integration/... -count=1 -v
-
-test-cover-integration:
-	@echo "运行集成测试并生成覆盖率报告..."
-	@go test -tags=integration -cover -coverprofile=coverage.out -count=1 -race -parallel=8 ./...
-	@go tool cover -func=coverage.out | tail -1
-	@go tool cover -html=coverage.out -o coverage.html
-	@echo "覆盖率报告已生成: coverage.html"
-
-clean-coverage:
-	@rm -f coverage.out coverage.html
-	@echo "覆盖率文件已清理"
-
-clean: clean-coverage
-	@rm -rf bin/
-	@echo "构建产物已清理"