fix(POSTV1-runtime): 改善后台启动与状态窗口可见性

supervisor/Dada.Supervisor/SupervisorForm.cs

@@ -26,6 +26,7 @@ internal sealed class SupervisorForm : Form
         Font = new Font("Segoe UI", 9F);
         FormBorderStyle = FormBorderStyle.FixedDialog;
         MaximizeBox = false;
+        ShowInTaskbar = true;
         StartPosition = FormStartPosition.CenterScreen;
         Text = "Dada";
 
@@ -90,10 +91,6 @@ internal sealed class SupervisorForm : Form
         trayIcon.DoubleClick += (_, _) => RestoreWindow();
 
         FormClosing += (_, _) => trayIcon.Visible = false;
-        Resize += (_, _) =>
-        {
-            if (WindowState == FormWindowState.Minimized) Hide();
-        };
         SetState(initialState);
     }
 
@@ -139,6 +136,14 @@ internal sealed class SupervisorForm : Form
         Activate();
     }
 
+    internal void SetBrowserLaunchFailure()
+    {
+        if (state == SupervisorState.Ready)
+        {
+            statusDetail.Text = "本机服务运行正常，但未能自动打开浏览器；请点击“打开 Dada”或选择浏览器。";
+        }
+    }
+
     protected override void Dispose(bool disposing)
     {
         if (disposing) trayIcon.Dispose();