feat: 完成 issue #21 点位字典 CSV schema 增加协议(protocol)维度

core/edge-gateway/collector/engine.py

@@ -58,14 +58,27 @@ class CollectorEngine:
 
     # ------------------------------------------------------------------
     def _build_routing(self) -> Dict[str, Driver]:
-        """按设备前缀把点位路由到对应驱动实例（模板配置驱动）。"""
+        """点位 → 驱动实例路由。
+
+        匹配优先级（issue #21「协议」维度）：
+        1. 点位级：点位字典 CSV protocol 列精确匹配驱动槽位协议；
+        2. 模板级（缺省）：按设备前缀 device_prefixes 匹配；
+        3. 兜底：无前缀的空槽位接收未匹配点位。
+        """
         routing: Dict[str, Driver] = {}
+        slot_by_protocol: Dict[str, Driver] = {}
         for protocol, driver, prefixes in self.driver_slots:
+            if protocol:
+                slot_by_protocol.setdefault(protocol, driver)
             for p in self.point_dict.points:
                 if p.point_id in routing:
                     continue
                 if not prefixes or any(p.device_id.startswith(pre) for pre in prefixes):
                     routing[p.point_id] = driver
+        # 点位级协议覆盖：优先于前缀路由
+        for p in self.point_dict.points:
+            if p.protocol and p.protocol in slot_by_protocol:
+                routing[p.point_id] = slot_by_protocol[p.protocol]
         return routing
 
     # ------------------------------------------------------------------