test: 真人验收清单+API级联调验收

真实 GLM 五轮实跑(EN/ES/ZH/换号/敏感问)+mock推送+admin三视图,核心项全过。
修复: 中文轮漂英文→语言跟随提醒; extractor裸字符串联系方式→500崩溃兜形;
号码回显/样品承诺/标记词泄漏 prompt加固; 测试env耦合断言; .env前缀对齐。

Co-Authored-By: Claude Code <noreply@anthropic.com>

tests/test_lead_push_service.py

@@ -161,7 +161,7 @@ def test_dispatch_pending_payload_structure(async_db, monkeypatch):
     assert log is not None and log.status == "pending"
     p = log.request_payload
     assert p["event"] == "new"
-    assert p["external_key"] == f"ai-kefu-{conv.id}"
+    assert p["external_key"] == f"{svc.settings.PUSH_EXTERNAL_KEY_PREFIX}-{conv.id}"  # 不硬编码前缀: 联调 .env 会写真实 PUSH_* 值(同 test_push_settings_defaults 的隔离教训)
     assert p["occurred_at"].endswith("+08:00")
     assert p["contact"]["phone"] == "+254722111117"
     assert p["contact"]["skype"] is None