docs(agent): 统一中文注释并补充部署文档

将代码与测试注释改为中文以符合仓库规范；新增中文部署指南、
示例配置，并完善构建脚本对 VERSION 注入的说明。

Co-authored-by: Cursor <cursoragent@cursor.com>

cmd/agent/main.go

@@ -20,9 +20,9 @@ import (
 	"mfd-monitor-agent/internal/snapshot"
 )
 
-const version = "0.1.0"
+var version = "0.1.0"
 
-// main runs the CLI and exits non-zero when a command fails.
+// main 运行 CLI，命令失败时以非零状态退出。
 func main() {
 	if err := runCLI(os.Args[1:]); err != nil {
 		_, _ = fmt.Fprintln(os.Stderr, err)
@@ -30,7 +30,7 @@ func main() {
 	}
 }
 
-// runCLI dispatches agent subcommands and loads config before invoking command handlers.
+// runCLI 分发 agent 子命令，并在调用处理函数前加载配置。
 func runCLI(args []string) error {
 	if len(args) == 0 {
 		args = []string{"run"}
@@ -38,7 +38,7 @@ func runCLI(args []string) error {
 	switch args[0] {
 	case "run":
 		fs := flag.NewFlagSet("run", flag.ExitOnError)
-		configPath := fs.String("config", "", "path to JSON config file")
+		configPath := fs.String("config", "", "JSON 配置文件路径")
 		if err := fs.Parse(args[1:]); err != nil {
 			return err
 		}
@@ -79,11 +79,11 @@ func runCLI(args []string) error {
 	}
 }
 
-// commandConfig parses service command flags and resolves the executable path.
+// commandConfig 解析服务相关子命令的标志并解析可执行文件路径。
 func commandConfig(args []string) (config.Config, string, string, error) {
 	fs := flag.NewFlagSet("service", flag.ExitOnError)
-	configPath := fs.String("config", "", "path to JSON config file")
-	executableFlag := fs.String("exe", "", "path to agent executable")
+	configPath := fs.String("config", "", "JSON 配置文件路径")
+	executableFlag := fs.String("exe", "", "agent 可执行文件路径（默认当前二进制）")
 	if err := fs.Parse(args); err != nil {
 		return config.Config{}, "", "", err
 	}
@@ -101,7 +101,7 @@ func commandConfig(args []string) (config.Config, string, string, error) {
 	return cfg, executable, *configPath, nil
 }
 
-// runAgent starts collection, optional reporting, and the local HTTP API until signaled.
+// runAgent 启动采集、可选上报与本地 HTTP API，直至收到退出信号。
 func runAgent(cfg config.Config) error {
 	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
 	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)