拆分报告渲染函数的第一阶段，把 34 个无外层依赖的辅助函数搬到 report_render。

同一份真实盘包在屏蔽与不屏蔽 PyJHora 下新旧渲染 sha 都一致，各 24 项且退出码 0。指定 pytest 233 通过、3 跳过。

Co-Authored-By: Grok (agent loop)

scripts/report_render/envelope.py

@@ -0,0 +1,49 @@
+"""Helpers moved unchanged out of render_pl9_markdown (phase 1)."""
+
+def _unwrap(raw_value):
+    # 兼容 packet 字段的 response_envelope 升级：
+    # 真实数据可能直接是 list/dict，也可能被包成 {"result": ..., "response_envelope": {...}}。
+    if (
+        isinstance(raw_value, dict)
+        and 'result' in raw_value
+        and 'response_envelope' in raw_value
+    ):
+        return raw_value.get('result')
+    return raw_value
+
+def _envelope_list(raw_value):
+    raw_value = _unwrap(raw_value)
+    if isinstance(raw_value, list):
+        return raw_value
+    if isinstance(raw_value, tuple):
+        return list(raw_value)
+    # 期望 list 时，即使只有 result 键也解包，避免 nested planets 被空渲染成 '-'。
+    if isinstance(raw_value, dict) and 'result' in raw_value:
+        nested = raw_value.get('result')
+        if isinstance(nested, list):
+            return nested
+        if isinstance(nested, tuple):
+            return list(nested)
+    return []
+
+def _envelope_dict(raw_value):
+    raw_value = _unwrap(raw_value)
+    return raw_value if isinstance(raw_value, dict) else {}
+
+def _bool_text(value):
+    return '是' if value else '否'
+
+def _source_dict(*candidates):
+    for candidate in candidates:
+        if isinstance(candidate, dict) and candidate:
+            return candidate
+    return {}
+
+def _has_executed_payload(value) -> bool:
+    if value in (None, '', [], {}):
+        return False
+    if isinstance(value, dict):
+        status = str(value.get('status') or value.get('execution_status') or '').strip().lower()
+        if status in {'blocked', 'missing', 'not_found', 'parameter_sensitive'}:
+            return False
+    return True