feat: MQTT 协议 V1.01 — Topic 压缩为双主题 (up/down)

- 7个主题压缩为2个: dld960/{sn}/down + dld960/{sn}/up
- 消息类型由 JSON cmd 字段区分，不再依赖 topic 路径
- protocol.py: topic_up()/topic_down() 替代旧7个函数
- mqtt_client.py: 4个通配符订阅→1个 dld960/+/up
- main.py: 消息路由改为 cmd 匹配，协议Topic树简化
- 文档更新 V1.01

DBNMQTTool/dbn_mqtt_tool/mqtt_client.py

@@ -68,14 +68,8 @@ class MqttClient:
             self._connected = True
             self._notify_status(True, "已连接到 Broker")
 
-            from .protocol import (
-                TOPIC_ALL_CONFIG_RESP, TOPIC_ALL_DATA_LOOP,
-                TOPIC_ALL_DATA_EVENT, TOPIC_ALL_STATUS
-            )
-            client.subscribe(TOPIC_ALL_CONFIG_RESP, qos=1)
-            client.subscribe(TOPIC_ALL_DATA_LOOP, qos=1)
-            client.subscribe(TOPIC_ALL_DATA_EVENT, qos=1)
-            client.subscribe(TOPIC_ALL_STATUS, qos=0)
+            from .protocol import TOPIC_ALL_DEVICE_UP
+            client.subscribe(TOPIC_ALL_DEVICE_UP, qos=1)
         else:
             self._connected = False
             self._notify_status(False, f"连接失败 (rc={rc})")

DBNMQTTool/dbn_mqtt_tool/protocol.py

@@ -1,7 +1,9 @@
 """
 DLD960 IoT MQTT 协议定义
 
-基于《DLD960_IoT_MQTT协议.md》V1.00
+基于《DLD960_IoT_MQTT协议.md》V1.01
+双主题结构：{sn}/down（服务器下发）、{sn}/up（设备上报）
+消息类型由 JSON `cmd` 字段区分。
 """
 
 import json
@@ -11,49 +13,32 @@ from dataclasses import dataclass, field, asdict
 
 
 # ============================================================
-# Topic 结构
+# Topic 结构（V1.01 — 双主题）
 # ============================================================
 
-def topic_config_set(dev_serial: str) -> str:
-    """服务器下发 — 设置配置"""
-    return f"dld960/{dev_serial}/srv/config/set"
+def topic_down(dev_serial: str) -> str:
+    """服务器下发 — 设备订阅此主题接收所有命令"""
+    return f"dld960/{dev_serial}/down"
 
 
-def topic_config_query(dev_serial: str) -> str:
-    """服务器下发 — 查询配置"""
-    return f"dld960/{dev_serial}/srv/config/query"
+def topic_up(dev_serial: str) -> str:
+    """设备上报 — 设备发布到此主题（数据、事件、心跳、响应）"""
+    return f"dld960/{dev_serial}/up"
 
 
-def topic_ctrl(dev_serial: str) -> str:
-    """服务器下发 — 控制命令"""
-    return f"dld960/{dev_serial}/srv/ctrl"
+# 保持向后兼容的别名（4.7 iot_topic_set 仍使用 topic_pub / topic_sub）
+def topic_dev_pub(dev_serial: str) -> str:
+    """设备发布主题（= topic_up）"""
+    return topic_up(dev_serial)
 
 
-def topic_config_resp(dev_serial: str) -> str:
-    """设备上报 — 配置响应"""
-    return f"dld960/{dev_serial}/dev/config/resp"
+def topic_dev_sub(dev_serial: str) -> str:
+    """设备订阅主题（= topic_down）"""
+    return topic_down(dev_serial)
 
 
-def topic_data_loop(dev_serial: str) -> str:
-    """设备上报 — 线圈数据"""
-    return f"dld960/{dev_serial}/dev/data/loop"
-
-
-def topic_data_event(dev_serial: str) -> str:
-    """设备上报 — 事件"""
-    return f"dld960/{dev_serial}/dev/data/event"
-
-
-def topic_status(dev_serial: str) -> str:
-    """设备上报 — 状态/心跳"""
-    return f"dld960/{dev_serial}/dev/status"
-
-
-# 订阅通配符（监听所有设备）
-TOPIC_ALL_CONFIG_RESP = "dld960/+/dev/config/resp"
-TOPIC_ALL_DATA_LOOP = "dld960/+/dev/data/loop"
-TOPIC_ALL_DATA_EVENT = "dld960/+/dev/data/event"
-TOPIC_ALL_STATUS = "dld960/+/dev/status"
+# 服务器端通配符订阅（监听所有设备）
+TOPIC_ALL_DEVICE_UP = "dld960/+/up"
 
 
 # ============================================================
@@ -158,15 +143,8 @@ def build_response(cmd: str, msg_id: int, code: int = 0, msg_text: str = "succes
 
 
 def get_topic_for_cmd(cmd: str, dev_serial: str) -> str:
-    """根据命令获取对应的下发 topic"""
-    if cmd in CONFIG_SET_COMMANDS:
-        return topic_config_set(dev_serial)
-    elif cmd in CONFIG_QUERY_COMMANDS:
-        return topic_config_query(dev_serial)
-    elif cmd in CTRL_COMMANDS:
-        return topic_ctrl(dev_serial)
-    else:
-        return topic_config_set(dev_serial)  # 默认
+    """获取命令对应的下发 topic。所有命令统一使用 topic_down"""
+    return topic_down(dev_serial)
 
 
 # ============================================================