解决issue154中的model_output有换行的问题以及多行文本输出。解决subprocessing编码问题

phone_agent/adb/connection.py

@@ -109,7 +109,7 @@ class ADBConnection:
             if address:
                 cmd.append(address)
 
-            result = subprocess.run(cmd, capture_output=True, text=True, timeout=5)
+            result = subprocess.run(cmd, capture_output=True, text=True, encoding="utf-8", timeout=5)
 
             output = result.stdout + result.stderr
             return True, output.strip() or "Disconnected"
@@ -241,7 +241,7 @@ class ADBConnection:
                 cmd.extend(["-s", device_id])
             cmd.extend(["tcpip", str(port)])
 
-            result = subprocess.run(cmd, capture_output=True, text=True, timeout=10)
+            result = subprocess.run(cmd, capture_output=True, text=True, encoding="utf-8", timeout=10)
 
             output = result.stdout + result.stderr
 
@@ -270,7 +270,7 @@ class ADBConnection:
                 cmd.extend(["-s", device_id])
             cmd.extend(["shell", "ip", "route"])
 
-            result = subprocess.run(cmd, capture_output=True, text=True, timeout=5)
+            result = subprocess.run(cmd, capture_output=True, text=True, encoding="utf-8", timeout=5)
 
             # Parse IP from route output
             for line in result.stdout.split("\n"):
@@ -286,6 +286,7 @@ class ADBConnection:
                 cmd[:-1] + ["shell", "ip", "addr", "show", "wlan0"],
                 capture_output=True,
                 text=True,
+                encoding="utf-8",
                 timeout=5,
             )