Terminal commands return "No terminal available" despite running in JetBrains IDE with Claude AI Assistant

**Issue Description**
When using the Claude AI Assistant plugin in JetBrains IDE, terminal commands appear to execute but always return a "No terminal available" response. Commands are being sent to the terminal (as evidenced by the function call being processed), but the plugin seems unable to capture or return the output from the terminal.

**Steps to Reproduce**

- Use the Claude AI Assistant in JetBrains IDE
- Try to execute any terminal command using the execute_terminal_command function
- Observe that the command appears to be processed (the function call works), but returns "No terminal available" instead of the actual command output

For example:

```
Request:
{
`command`: `go build`
}
```

```
Response:
No terminal available
```

But a terminal is created, and the command runs successfully there: