完善模板，加入RPA标准

scripts/jiangchang_skill_core/rpa/artifacts.py

@@ -0,0 +1,29 @@
+# vendored from jiangchang-platform-kit; do not edit here, edit the kit.
+"""RPA 失败存证路径与截图。"""
+
+from __future__ import annotations
+
+import os
+from datetime import datetime
+
+
+def _artifacts_enabled() -> bool:
+    v = (os.environ.get("OPENCLAW_ARTIFACTS_ON_FAILURE") or "1").strip().lower()
+    return v not in ("0", "false", "no", "off")
+
+
+def artifact_path(data_dir: str, batch_id: str, tag: str, ext: str = "png") -> str:
+    """返回 {data_dir}/rpa-artifacts/{batch_id}/{tag}_{timestamp}.{ext}"""
+    ts = datetime.now().strftime("%Y%m%d_%H%M%S")
+    directory = os.path.join(data_dir, "rpa-artifacts", batch_id)
+    os.makedirs(directory, exist_ok=True)
+    return os.path.join(directory, f"{tag}_{ts}.{ext}")
+
+
+async def capture_failure(page, data_dir: str, batch_id: str, tag: str) -> str:
+    """受 OPENCLAW_ARTIFACTS_ON_FAILURE 控制，截图并返回路径；禁用时返回空字符串。"""
+    if not _artifacts_enabled():
+        return ""
+    path = artifact_path(data_dir, batch_id, tag, ext="png")
+    await page.screenshot(path=path, full_page=True)
+    return path