Document agent access token envs in templates

tests/test_template_agent_contract.py

@@ -106,3 +106,13 @@ def test_dedicated_template_agent_contract_doc_exists():
     assert "POST /agents/{agent_name}/stop" in doc_source
     assert "DELETE /agents/{agent_name}" in doc_source
     assert "X-Agent-Access-Token" in doc_source
+
+
+def test_template_manager_exposes_agent_access_token_envs():
+    """Template definitions should advertise the HM access-token envs explicitly."""
+    template_source = _read("template_manager.py")
+
+    assert '"a2a_litellm_agent": {' in template_source
+    assert '"coding_a2a_agent": {' in template_source
+    assert '"AGENT_ACCESS_TOKEN": "客户端访问令牌；若设置，A2A 请求必须携带 X-Agent-Access-Token"' in template_source
+    assert '"HEICODE_AGENT_ID": "上层系统分配的 agent_id，用于 health / agent card 暴露与联调排查"' in template_source