feat: Add support for environment protection (scrubbing) (#327)

* feat: Add support for environment variable protection for sandbox

* chore: Update dangerous env var list

* fix: Split profiles for improved environment protection

* fix: pipx sandbox profile separation

* chore: Show sandbox scrub info on error exit

* fix: Code review fixes

* test: Add e2e for sandbox environment scrubbing

sandbox/sandbox_test.go

@@ -0,0 +1,20 @@
+package sandbox
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestExecutionResultScrubbedEnvCount(t *testing.T) {
+	r := NewExecutionResult()
+	assert.Equal(t, 0, r.ScrubbedEnvCount())
+
+	r.SetScrubbedEnvCount(3)
+	assert.Equal(t, 3, r.ScrubbedEnvCount())
+}
+
+func TestExecutionResultScrubbedEnvCountNilReceiver(t *testing.T) {
+	var r *ExecutionResult
+	assert.Equal(t, 0, r.ScrubbedEnvCount())
+}