`list_codeql_databases` does not discover databases downloaded by the `GitHub.vscode-codeql` extension

[data-douser]

Bug Report

Summary

list_codeql_databases only searches its own extension storage directory but does not discover databases already downloaded by the GitHub.vscode-codeql extension.

Steps to Reproduce

1. Use the GitHub.vscode-codeql extension to download a database (e.g., checkstyle/checkstyle for javascript).
2. The database is stored under VS Code workspace storage:

   ~/Library/Application Support/Code/User/workspaceStorage/<workspace-id>/GitHub.vscode-codeql/<nwo>/codeql_db/
   

3. Call list_codeql_databases — returns no databases.
4. The database must be manually registered via register_database before it can be used.

Expected Behavior

list_codeql_databases should auto-discover databases downloaded by the GitHub.vscode-codeql extension.

Actual Behavior

Only the MCP server's own storage path is searched:

~/Library/Application Support/Code/User/globalStorage/advanced-security.vscode-codeql-development-mcp-server/databases

Suggested Fix

• Scan workspaceStorage/*/GitHub.vscode-codeql/ paths for codeql-database.yml files.
• Optionally read the GitHub.vscode-codeql extension's config from globalStorage/github.vscode-codeql/databases.json.
• Add these paths to the default database search directories.