chore: 保存工作副本——客户端授权新契约(双端点/验签/令牌/周检)与桌面会话可靠性改进

src-tauri/src/services/ssh.rs

@@ -96,7 +96,12 @@ impl SshService {
         app: &AppHandle,
         connection_id: &str,
         retain_forwards: bool,
+        reason: Option<String>,
     ) -> Result<(), String> {
+        let reason = reason
+            .map(|value| value.trim().to_string())
+            .filter(|value| !value.is_empty())
+            .unwrap_or_else(|| "connection closed".to_string());
         // Dedicated tunnel sessions keep listening across terminal flaps when
         // retain_forwards is true. Explicit teardown (tab close / panel disconnect)
         // must still close real Listeners.
@@ -123,7 +128,7 @@ impl SshService {
         for shell_id in shell_ids {
             if let Some(mut shell) = self.shells.lock().map_err(lock_error)?.remove(&shell_id) {
                 let _ = shell.channel.close();
-                let _ = shell.session.disconnect(None, "closed by user", None);
+                let _ = shell.session.disconnect(None, &reason, None);
             }
         }
         let sftp_ids = {
@@ -148,13 +153,13 @@ impl SshService {
             .map_err(lock_error)?
             .remove(connection_id)
         {
-            let _ = connection.session.disconnect(None, "closed by user", None);
+            let _ = connection.session.disconnect(None, &reason, None);
         }
         let _ = app.emit(
             "ssh:connection-closed",
             ConnectionClosedEvent {
                 connection_id: connection_id.to_string(),
-                reason: "closed by user".to_string(),
+                reason,
             },
         );
         Ok(())
@@ -657,15 +662,12 @@ fn classify_shell_close(output_tail: &[u8], read_error: Option<&str>) -> (String
         || output.contains("auto-logout")
         || output.contains("auto logout");
     if idle_timeout {
-        return ("远端 Shell 因空闲策略（TMOUT）自动退出".to_string(), true);
+        return ("shell.idleTimeout".to_string(), true);
     }
     if let Some(error) = read_error {
-        return (format!("远端 Shell 读取失败: {error}"), false);
+        return (format!("shell.readFailed: {error}"), false);
     }
-    (
-        "远端 Shell 已退出（可能执行了 exit、Ctrl+D，或被服务器策略关闭）".to_string(),
-        false,
-    )
+    ("shell.exited".to_string(), false)
 }
 
 fn write_nonblocking(channel: &mut ssh2::Channel, data: &[u8]) -> io::Result<()> {
@@ -814,7 +816,7 @@ mod tests {
             classify_shell_close(b"timed out waiting for input: auto-logout\r\n", None);
 
         assert!(idle_timeout);
-        assert!(reason.contains("TMOUT"));
+        assert_eq!(reason, "shell.idleTimeout");
     }
 
     #[test]
@@ -831,7 +833,7 @@ mod tests {
         let (reason, idle_timeout) = classify_shell_close(b"logout\r\n", None);
 
         assert!(!idle_timeout);
-        assert!(reason.contains("Shell 已退出"));
+        assert_eq!(reason, "shell.exited");
     }
 
     #[test]