feat(api): 补齐资源分发服务入口

新增 bat-api 资源 bootstrap/分发 HTTP 服务、RPC release 发现、CDN path 分发、launcher 资源引导兼容、控制面中间件、OpenAPI 和 systemd 模板。

同步 Go 边界文档，明确 Rust bat 是资源生产者和同步运维入口，Go bat-api 是只读 bootstrap/分发服务，试验 Go CLI 产物为 bin/bat-go。

验证：未运行新命令；本轮已按要求停止重复构建/测试。

Makefile

@@ -1,4 +1,4 @@
-.PHONY: help build build-ffi test clean check fmt lint install dev docker-build docker-up docker-down official-smoke
+.PHONY: help build build-ffi test clean check fmt lint install dev docker-build docker-up docker-down official-smoke build-go build-go-api build-go-cli test-go test-go-api test-go-ffi test-go-all
 
 # 默认目标
 .DEFAULT_GOAL := help
@@ -28,21 +28,25 @@ build-ffi: ## 构建 bat-ffi release 库（cgo 链接依赖）
 	@echo "$(BLUE)Building bat-ffi (release)...$(NC)"
 	cargo build --release -p bat-ffi
 
-build-go: build-ffi ## 构建 Go 组件
-	@echo "$(BLUE)Building Go CLI...$(NC)"
+build-go: build-go-api ## 构建 Go 默认产物（bat-api bootstrap/分发；同步 CLI 请用 Rust bat）
+
+build-go-api: ## 构建 bat-api（资源 bootstrap/分发 HTTP，无 FFI）
+	@echo "$(BLUE)Building bat-api (resource bootstrap + distribution)...$(NC)"
+	@mkdir -p bin
+	go build -o bin/bat-api ./cmd/bat-api
+
+build-go-cli: build-ffi ## 构建试验性 Go CLI → bin/bat-go（禁止命名为 bat）
+	@echo "$(BLUE)Building experimental Go CLI as bin/bat-go...$(NC)"
+	@mkdir -p bin
 	@if [ -f cmd/bat/main.go ]; then \
-		go build -o bin/bat ./cmd/bat; \
+		go build -o bin/bat-go ./cmd/bat; \
 	else \
-		echo "$(YELLOW)Go CLI entrypoint not implemented yet, skipping...$(NC)"; \
+		echo "$(YELLOW)experimental cmd/bat missing, skipping...$(NC)"; \
 	fi
 
-install: ## 安装到本地
-	@echo "$(BLUE)Installing bat CLI...$(NC)"
-	@if [ -f cmd/bat/main.go ]; then \
-		go install ./cmd/bat; \
-	else \
-		echo "$(YELLOW)Go CLI entrypoint not implemented yet, skipping...$(NC)"; \
-	fi
+install: build-go-api ## 安装 bat-api 到 GOPATH/bin（不安装名为 bat 的 Go 二进制）
+	@echo "$(BLUE)Installing bat-api...$(NC)"
+	go install ./cmd/bat-api
 
 # ============================================================================
 # 测试相关
@@ -54,14 +58,17 @@ test-rust: ## 运行 Rust 测试
 	@echo "$(BLUE)Running Rust tests...$(NC)"
 	cargo test --workspace
 
-test-go: build-ffi ## 运行 Go 测试
-	@echo "$(BLUE)Running Go tests...$(NC)"
-	@if [ -n "$$(go list ./... 2>/dev/null)" ]; then \
-		go test -v ./...; \
-	else \
-		echo "$(YELLOW)No Go packages yet, skipping...$(NC)"; \
-	fi
+test-go: test-go-api ## 默认 Go 门禁（无 FFI；见 GO_STATUS.md）
 
+test-go-api: ## 纯 Go 测试：internal/api + backendrpc
+	@echo "$(BLUE)Running pure Go tests (api + backendrpc)...$(NC)"
+	go test ./internal/api/... ./internal/backendrpc/...
+
+test-go-ffi: build-ffi ## 含 FFI/试验 CLI 的 Go 测试
+	@echo "$(BLUE)Running Go tests including FFI packages...$(NC)"
+	go test ./...
+
+test-go-all: test-go-api test-go-ffi ## 全部 Go 测试
 bench: ## 运行性能基准测试
 	@echo "$(BLUE)Running benchmarks...$(NC)"
 	cargo bench --workspace