修改了nanobot，往Hermes agent的风格走，进度1/3

app-instance/backend/tests/unit/test_imports.py

@@ -0,0 +1,40 @@
+from beaver.engine import AgentLoop
+from beaver.foundation.events import InboundMessage, MessageBus, OutboundMessage
+from beaver.interfaces.gateway.main import run_gateway
+from beaver.interfaces.web.app import create_app
+from beaver.interfaces.web.schemas import WebChatRequest, WebChatResponse
+
+
+def test_agent_loop_boots() -> None:
+    loop = AgentLoop()
+    loaded = loop.boot()
+    assert "echo" in loaded.tools
+    assert "memory" in loaded.tools
+    assert "session_search" in loaded.tools
+
+
+def test_web_app_factory() -> None:
+    app = create_app()
+    assert app.title == "Beaver Backend"
+
+
+def test_gateway_entry_imports() -> None:
+    assert callable(run_gateway)
+
+
+def test_message_bus_imports() -> None:
+    bus = MessageBus()
+    assert isinstance(bus, MessageBus)
+    assert InboundMessage(channel="test", content="hello").channel == "test"
+    assert OutboundMessage(channel="test", content="ok", session_id=None, finish_reason="stop").content == "ok"
+
+
+def test_web_schema_imports() -> None:
+    assert WebChatRequest(message="hello").message == "hello"
+    assert WebChatResponse(
+        session_id="s",
+        run_id="r",
+        output_text="ok",
+        finish_reason="stop",
+        tool_iterations=0,
+    ).output_text == "ok"