feat: 更新 agent.json 配置，确保主配置路径为绝对路径，并添加 agent 状态文件

atsf_agent/internal/nginx/manager.go

@@ -315,6 +315,10 @@ func NewExecutor(options ExecutorOptions) Executor {
 			Runner: runner,
 		}
 	}
+	mainConfigPath := options.MainConfigPath
+	if absPath, err := filepath.Abs(mainConfigPath); err == nil {
+		mainConfigPath = absPath
+	}
 	routeConfigDir := filepath.Dir(options.RouteConfigPath)
 	if absDir, err := filepath.Abs(routeConfigDir); err == nil {
 		routeConfigDir = absDir
@@ -327,7 +331,7 @@ func NewExecutor(options ExecutorOptions) Executor {
 		DockerBinary:   options.DockerBinary,
 		ContainerName:  options.ContainerName,
 		Image:          options.Image,
-		MainConfigPath: options.MainConfigPath,
+		MainConfigPath: mainConfigPath,
 		RouteConfigDir: routeConfigDir,
 		CertDir:        certDir,
 		NginxCertDir:   options.NginxCertDir,

atsf_agent/internal/nginx/manager_test.go

@@ -291,9 +291,15 @@ func TestNewExecutorUsesAbsoluteDockerMountPath(t *testing.T) {
 	if !filepath.IsAbs(dockerExecutor.RouteConfigDir) {
 		t.Fatalf("expected absolute route config dir, got %s", dockerExecutor.RouteConfigDir)
 	}
+	if !filepath.IsAbs(dockerExecutor.MainConfigPath) {
+		t.Fatalf("expected absolute main config path, got %s", dockerExecutor.MainConfigPath)
+	}
 	if !strings.HasSuffix(dockerExecutor.RouteConfigDir, filepath.Clean("data/etc/nginx/conf.d")) {
 		t.Fatalf("unexpected route config dir: %s", dockerExecutor.RouteConfigDir)
 	}
+	if !strings.HasSuffix(dockerExecutor.MainConfigPath, filepath.Clean("data/etc/nginx/nginx.conf")) {
+		t.Fatalf("unexpected main config path: %s", dockerExecutor.MainConfigPath)
+	}
 }
 
 func TestDetectVersionFromBinary(t *testing.T) {