[GitHub Copilot - Bug | Feature request]: @mssql prompts hang then give an error

### Description

@mssql prompts hang then give an error as follows:
⚠️ This message couldn't be processed. If this issue persists, please check the logs and open an issue on GitHub.
[https://aka.ms/vscode-mssql-copilot-feedbackAn](vscode-file://vscode-app/c:/Tools/Microsoft%20VS%20Code/8b640eef5a/resources/app/out/vs/code/electron-browser/workbench/workbench.html) error occurred: All tool calls failed or timed out.

### Steps to Reproduce

Enter a prompt to connect e.g. `@mssql /connect my_database`, a 'Connected to' message appears indication connection succeeded. Then enter a prompt to create a query from a description of the required outputs, parameters and tables involved.

### Affected Area

- [ ] Agent mode
- [x] Ask mode
- [ ] Slash commands
- [ ] Code generation
- [ ] Connection management
- [ ] Schema exploration and object management
- [ ] Query execution and performance advisor
- [ ] Other (please describe below)

### If you selected "Other", please describe the affected area

_No response_

### Environment Information (Optional)

_No response_

### Confirmation

- [x] I have searched existing issues and couldn’t find a match
- [ ] I want to work on this issue

Start by reproducing the failure in VS Code's mssql Ask mode: connect with `@mssql /connect my_database`, then request a query from a description. Check the extension logs around the reported tool-call timeouts. Done means prompts no longer hang or return the tool-call error and query-generation requests complete successfully.

Written by the indexing model from the issue text.