feat: add LDPlayer_id property and improve emulator stop logic

module/device/platform/emulator_base.py

@@ -114,6 +114,23 @@ class EmulatorInstanceBase:
 
         return None
 
+    @cached_property
+    def LDPlayer_id(self):
+        """
+        Convert LDPlayer instance name to instance id.
+        Example names:
+            leidian0
+            leidian1
+
+        Returns:
+            int: Instance ID, or None if this is not a LDPlayer instance
+        """
+        res = re.search(r'leidian(\d+)', self.name)
+        if res:
+            return int(res.group(1))
+
+        return None
+
 
 class EmulatorBase:
     # Values here must match those in argument.yaml EmulatorInfo.Emulator.option