feat: 增强连接命令的错误处理，添加沙盒生命周期结束的提示信息

Author: mfzzf

packages/js-sdk/src/errors.ts

@@ -29,7 +29,7 @@ export class SandboxError extends Error {
  *
  * The [deadline_exceeded] error type is caused by exceeding the timeout for command execution, watch, etc.
  *
- * The [unknown] error type is sometimes caused by the sandbox timeout when the request is not processed correctly.
+ * It may also occur because the sandbox has reached the end of its lifecycle.
  */
 export class TimeoutError extends SandboxError {
   constructor(message: string, stackTrace?: string) {

src/commands/sandbox/connect.ts

@@ -24,6 +24,13 @@ export const connectCommand = new commander.Command('connect')
       process.exit(0)
     } catch (err: any) {
       console.error(err)
+      const message =
+        typeof err?.message === 'string' ? err.message : String(err)
+      if (/unknown[_ ]error/i.test(message)) {
+        console.error(
+          'Connection closed, it might be because the sandbox has reached the end of its lifecycle.'
+        )
+      }
       process.exit(1)
     }
   })