fix(bridge): notify 通道 1f1f/331f 双候选 + services 诊断 op，build=3

tools/bridge_server.py

@@ -27,12 +27,15 @@ import platform
 import sys
 
 PROTOCOL_VERSION = 1
-SERVER_BUILD = 2  # 2026-07-28: connect 改为扫描解析 BLEDevice 后连接（WinRT 兼容）
+SERVER_BUILD = 3  # 2026-07-28: notify 通道 1f1f/331f 双候选 + connect 返回 GATT 表
 
 EPD_SERVICE_UUID = "13187b10-eba9-a3ba-044e-83d3217d9a38"
 EPD_CHAR_UUID = "4b646063-6264-f3a7-8941-e65356ea82fe"
 RXTX_SERVICE_UUID = "00001f10-0000-1000-8000-00805f9b34fb"
 RXTX_CHAR_UUID = "00001f1f-0000-1000-8000-00805f9b34fb"
+# 固件分析（firmware-analysis §2/§3）：0x221f 服务的 0x331f 特征（handle 0x0B）
+# 与 0x1f1f（handle 7）同入命令分发器；部分固件 notify 能力挂在 331f 上
+ALT_NOTIFY_UUID = "0000331f-0000-1000-8000-00805f9b34fb"
 DEVICE_NAME_PREFIX = "NRF-"
 
 SPOTA_SERVICE_UUID = "0000fef5-0000-1000-8000-00805f9b34fb"
@@ -63,6 +66,7 @@ class BleSession:
 
     def __init__(self):
         self.client = None
+        self.notify_char = None
         self._id_buf = bytearray()
         self._id_event = asyncio.Event()
 
@@ -94,8 +98,26 @@ class BleSession:
             raise RuntimeError(f"设备解析失败（扫描未见 {address}）")
         self.client = BleakClient(dev, timeout=timeout)
         await self.client.connect()
-        await self.client.start_notify(RXTX_CHAR_UUID, self._on_notify)
+        # notify 通道：1f1f 优先，331f 兜底（固件两 handle 同入分发器，notify 位可能只在 331f）
-        return {"address": address, "name": dev.name}
+        self.notify_char = None
+        for uuid in (RXTX_CHAR_UUID, ALT_NOTIFY_UUID):
+            try:
+                await self.client.start_notify(uuid, self._on_notify)
+                self.notify_char = uuid
+                break
+            except Exception:
+                continue
+        table = self._gatt_table()
+        return {"address": address, "name": dev.name,
+                "notify_char": self.notify_char, "gatt": table}
+
+    def _gatt_table(self):
+        table = []
+        for s in self.client.services:
+            for c in s.characteristics:
+                table.append({"service": str(s.uuid), "char": str(c.uuid),
+                              "handle": c.handle, "props": list(c.properties)})
+        return table
 
     def _on_notify(self, _sender, data: bytearray):
         self._id_buf.extend(data)
@@ -228,6 +250,8 @@ class BridgeServer:
             return await self.ble.request_device_id(float(req.get("timeout", 8.0)))
         if op == "close":
             return await self.ble.close() or {}
+        if op == "services":
+            return {"gatt": self.ble._gatt_table(), "notify_char": self.ble.notify_char}
         raise ValueError(f"unknown op {op!r}")