gapfill G3: unify all 5 private row_get onto peer_messages.row_get (approvals, automations, marker_tools, todos, wait_ops; resident import retargeted); semantics identical on None/dict/sqlite3.Row, identity tests added

cloud/approvals.py

@@ -74,6 +74,7 @@ import json
 import time
 import uuid
 
+from cloud.peer_messages import row_get
 from cloud.timeouts import APPROVAL_DEFAULT_SECONDS as _APPROVAL_DEFAULT
 from cloud.timeouts import expires_at_for as _expires_at_for
 from cloud.timeouts import resolve_module_timeout as _resolve_timeout
@@ -86,16 +87,6 @@ MAX_SUMMARY_CHARS = 2000
 MAX_DETAIL_CHARS = 20000
 
 
-def row_get(row, name):
-    """行取值容错：sqlite3.Row 缺列报 IndexError、dict 缺键报
-    KeyError、空行报 TypeError，一律回 None(与 peer_messages
-    的同名函数同款，模块独立所以这里自带一份)。"""
-    try:
-        return row[name]
-    except (KeyError, IndexError, TypeError):
-        return None
-
-
 def ensure_approvals_table(conn):
     """幂等建审批队列表。调用方负责 commit(服务端入口在写
     操作后统一 commit；本函数自己不 commit，避免半截事务)。"""