feat: Add Support for Optimistic Cloud Sync (#273)

* feat: Add support for background sync

* refactor: Maintain single source of truth for command defn

* fix: Code review fixes

* fix: Code review fixes

* docs: Add corner case inline doc

internal/audit/spawn_unix_test.go

@@ -0,0 +1,19 @@
+//go:build !windows
+
+package audit
+
+import (
+	"os/exec"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestApplyDetachAttrsSetsSetsidOnUnix(t *testing.T) {
+	cmd := exec.Command("true")
+	applyDetachAttrs(cmd)
+
+	require.NotNil(t, cmd.SysProcAttr, "applyDetachAttrs must populate SysProcAttr")
+	assert.True(t, cmd.SysProcAttr.Setsid, "Unix detach must set Setsid so child becomes a new session leader")
+}