feat(hass): 新增小爱音箱接入 Home Assistant Assist 的完整示例

- 新增完整的 Home Assistant 集成示例，支持文本对话与上下文会话
- 实现小爱音箱事件解析与 TTS 播报，支持实时打断功能
- 添加连续会话管理，支持区域上下文注入和会话超时结束
- 提供完整的配置系统、类型定义和错误处理
- 包含 Rust 扩展模块用于小爱音箱通信，支持音频流处理
- 添加单元测试、集成测试脚本和 Docker 部署支持
- 提供详细的使用文档和配置说明

examples/hass/tests/test_assistant_session.py

@@ -0,0 +1,53 @@
+import asyncio
+
+import pytest
+
+from hass_assistant import ConversationSession
+
+
+@pytest.mark.asyncio
+async def test_session_idle_timeout_triggers_end():
+    session = ConversationSession(
+        enabled=True,
+        idle_timeout_seconds=1,
+        end_keywords=["再见", "拜拜", "滚", "退下"],
+    )
+
+    triggered = {"value": False}
+
+    async def on_timeout():
+        triggered["value"] = True
+
+    session.restart_idle_timer(on_timeout)
+    await asyncio.sleep(1.2)
+
+    assert triggered["value"] is True
+    await session.close()
+
+
+def test_session_end_keyword_contains_match():
+    session = ConversationSession(
+        enabled=True,
+        idle_timeout_seconds=15,
+        end_keywords=["再见", "拜拜", "滚", "退下"],
+    )
+
+    assert session.match_end_keyword("那就先这样吧，再见哈") == "再见"
+    assert session.match_end_keyword("你先退下吧") == "退下"
+    assert session.match_end_keyword("继续聊聊") is None
+
+
+def test_session_area_mapping_hit_and_miss():
+    session = ConversationSession(
+        enabled=True,
+        idle_timeout_seconds=15,
+        end_keywords=["再见"],
+    )
+
+    mapping = {"192.168.1.101": "客厅"}
+    assert session.resolve_area("192.168.1.101", mapping) == "客厅"
+    assert session.resolve_area("192.168.1.102", mapping) is None
+    assert session.resolve_area(None, mapping) is None
+
+    prefix = session.build_area_prefix("客厅")
+    assert "当前用户对话所在区域：客厅" in prefix