Recurring Network error in Copilot CLI

### Describe the bug

If the prompts are longer in size, my copilot cli keeps throwing errors.

```
✗ Model call failed: "Connection error."

✗ Execution failed: Connection error.
```
I can try again after a `/clear` - sometimes works. But mostly fails.
Models used Claude Sonnet 4.5 and 4.

Is there some sort of network timeout or limit on thinking time? If I reduce the complexity of my prompts, Copilot will usually answer them, so this is not a HTTP proxy or connectivity issue.

### Affected version

0.0.341

### Steps to reproduce the behavior

1. Enter a complex prompt, usually some bigger task involving multiple files and some complex tasks.
2. Let the LLM think for a couple of minutes
3. Observe the error message

### Expected behavior

1. Enter a complex prompt, usually some bigger task involving multiple files and some complex tasks.
2. Either get the desired result or get an explanation why the answer could not be generated.

### Additional context

- Shell: bash
- Terminal: Windows Terminal (WSL)
- CPU Architecture: x86-64
- OS: Windows11, WSL2, Ubuntu 24
- copilot running in WSL2, all activities happening on WSL2 , no Windows resources needed
- Logs:
```
2025-10-15T07:30:20.745Z [INFO] Starting Copilot CLI: 0.0.341
Commit: 5725358
2025-10-15T07:30:20.745Z [INFO] Node.js version: v24.10.0
2025-10-15T07:30:22.240Z [LOG] Using Copilot API endpoint: https://api.business.githubcopilot.com/mcp/readonly
2025-10-15T07:30:22.241Z [LOG] Starting remote MCP client for github-mcp-server with url: https://api.business.githubcopilot.com/mcp/readonly
2025-10-15T07:30:22.241Z [LOG] Creating MCP client for github-mcp-server...
2025-10-15T07:30:22.244Z [LOG] Connecting MCP client for github-mcp-server...
2025-10-15T07:30:24.183Z [LOG] MCP client for github-mcp-server connected, took 1939ms
2025-10-15T07:30:24.183Z [LOG] Started MCP client for remote server github-mcp-server
2025-10-15T07:30:24.183Z [LOG] GitHub MCP server configured after authentication
2025-10-15T07:34:14.400Z [INFO]
2025-10-15T07:34:21.937Z [INFO] [log_c3562d, x-request-id: "00000-5f37d1ee-fdc7-48cb-a6d8-e3b1ace560b8"] post https://api.business.githubcopilot.com/chat/completions succeeded with status 200 in 5279ms

2025-10-15T07:34:52.103Z [INFO] [log_c5e5ac] connection failed - retrying, 5 attempts remaining

2025-10-15T07:35:23.364Z [INFO] [log_96855c] connection failed - retrying, 4 attempts remaining

2025-10-15T07:35:55.345Z [INFO] [log_d3185e] connection failed - retrying, 3 attempts remaining

2025-10-15T07:36:27.947Z [INFO] [log_9f7c8a] connection failed - retrying, 2 attempts remaining

2025-10-15T07:37:02.140Z [INFO] [log_274bfe] connection failed - retrying, 1 attempts remaining

2025-10-15T07:37:39.796Z [INFO] [log_2d2e8b] connection failed - error; no more retries left

2025-10-15T07:37:39.797Z [ERROR] error (Request-ID undefined)
2025-10-15T07:37:39.798Z [ERROR] {
"name": "CAPIError"
}
2025-10-15T07:37:39.798Z [ERROR] Retry after is not set. Giving up.
2025-10-15T07:37:39.798Z [ERROR] error
2025-10-15T07:37:39.798Z [ERROR] {
"name": "CAPIError"
}
```