fix: handle GBK encoding from Windows schtasks output via SSH

gateway/scripts/dashboard.py

@@ -844,7 +844,7 @@ def api_monitor():
                 status = "error"
             result["tasks"].append({"name": name, "status": status})
     else:
-        # Linux: SSH 到 Windows 查 schtasks
+        # Linux: SSH 到 Windows 查 schtasks（输出可能是 GBK）
         win_host = os.environ.get("WINDOWS_HOST", "192.168.1.16")
         for name in expected_tasks:
             try:
@@ -852,13 +852,25 @@ def api_monitor():
                     ["ssh", "-o", "StrictHostKeyChecking=no", "-o", "ConnectTimeout=5",
                      "-o", "BatchMode=yes", f"hmo@{win_host}",
                      f"schtasks /Query /TN {name} /FO CSV /NH"],
-                    capture_output=True, text=True, timeout=10
+                    capture_output=True, timeout=10
                 )
-                if r.returncode == 0 and name in r.stdout:
-                    if "就绪" in r.stdout or "Ready" in r.stdout or "Running" in r.stdout:
+                # 先看去重定向码：非0 = 任务不存在
+                if r.returncode != 0:
+                    result["tasks"].append({"name": name, "status": "not_deployed"})
+                    continue
+                # 尝试解码输出（Windows schtasks 默认 GBK，也试试 UTF-8）
+                out = ""
+                for enc in ["utf-8", "gbk", "gb2312", "cp936"]:
+                    try:
+                        out = r.stdout.decode(enc)
+                        break
+                    except UnicodeDecodeError:
+                        continue
+                if name in out:
+                    if "就绪" in out or "Ready" in out or "Running" in out:
                         result["tasks"].append({"name": name, "status": "schtasks_ok"})
                     else:
-                        result["tasks"].append({"name": name, "status": "schtasks_unknown", "raw": r.stdout.strip()})
+                        result["tasks"].append({"name": name, "status": "schtasks_unknown", "raw": out.strip()})
                 else:
                     result["tasks"].append({"name": name, "status": "not_deployed"})
             except Exception as e: