完善 MCP/会话上下文治理并补齐搜索与诊断能力。

补充历史压缩与会话诊断链路，强化 tool pairing 与空响应兜底观测；完善 Admin MCP 导入/绑定与相关前端展示；新增 web_search_fast/web_fetch_clean 及多项测试与文档更新，并同步技能安装与角色绑定策略改进。

Made-with: Cursor

tests/test_direct_loop_empty_assistant_response.py

@@ -0,0 +1,37 @@
+from __future__ import annotations
+
+from types import SimpleNamespace
+
+from oclaw.platform.persistence.sqlite_store import SqliteStore
+from oclaw.runtime.direct_loop import run_oclaw_direct_loop
+from oclaw.runtime.tools.base import ToolRegistry
+
+
+class _Model:
+    base_url = ""
+    thinking_mode_enabled = False
+
+    def chat(self, msgs, tools, on_token=None):  # noqa: ANN001,ARG002
+        return SimpleNamespace(content="", reasoning_content="", tool_calls=[])
+
+
+def test_direct_loop_persists_stub_on_empty_assistant(tmp_path) -> None:  # noqa: ANN001
+    db = tmp_path / "ops.sqlite"
+    store = SqliteStore(str(db))
+    sess = store.create_session("t")
+    out = run_oclaw_direct_loop(
+        store=store,
+        session_id=sess.id,
+        lang="zh",
+        system_prompt="x",
+        model=_Model(),
+        tools=ToolRegistry([]),
+        user_text="hi",
+        persist_user_message=True,
+        max_tool_rounds=1,
+    )
+    assert out.final_text
+    rows = store.get_messages(session_id=sess.id, limit=10)
+    assistant = [r for r in rows if getattr(r, "role", "") == "assistant"]
+    assert any("空响应" in str(getattr(r, "content", "") or "") for r in assistant)
+