fix: isolate docs i18n codex home

scripts/docs-i18n/translator.go

@@ -179,6 +179,12 @@ func runCodexExecPrompt(ctx context.Context, req codexPromptRequest) (string, er
 	_ = outputFile.Close()
 	defer os.Remove(outputPath)
 
+	codexHome, err := os.MkdirTemp("", "openclaw-docs-i18n-codex-home-*")
+	if err != nil {
+		return "", err
+	}
+	defer os.RemoveAll(codexHome)
+
 	args := []string{
 		"exec",
 		"--model", req.Model,
@@ -191,6 +197,7 @@ func runCodexExecPrompt(ctx context.Context, req codexPromptRequest) (string, er
 	}
 	command := exec.CommandContext(ctx, docsCodexExecutable(), args...)
 	command.Stdin = strings.NewReader(buildCodexTranslationPrompt(req.SystemPrompt, req.Message))
+	command.Env = append(os.Environ(), "CODEX_HOME="+codexHome)
 	var stdout bytes.Buffer
 	var stderr bytes.Buffer
 	command.Stdout = &stdout

scripts/docs-i18n/translator_test.go

@@ -149,6 +149,10 @@ while [ "$#" -gt 0 ]; do
   shift || true
 done
 cat >/dev/null
+if [ -z "${CODEX_HOME:-}" ]; then
+  echo "missing CODEX_HOME" >&2
+  exit 1
+fi
 printf 'translated from codex\n' > "$out"
 `), 0o755); err != nil {
 		t.Fatalf("write fake codex: %v", err)