Function showAuthenticationDialog

showAuthenticationDialog(source?: string): Promise<boolean>
Shows a non-intrusive authentication notification with login option. Uses a bottom-right notification instead of blocking modal dialog. This ensures a better user experience that doesn't interrupt workflow.
Parameters
- Optionalsource: string
  Optional source description (e.g., "Datalayer Platform", "Runtime Selection")
Returns Promise<boolean>
Promise that resolves to true if user clicked Login, false otherwise
Example
```
const shouldLogin = await showAuthenticationDialog("Datalayer Platform");
if (shouldLogin) {
  await vscode.commands.executeCommand("datalayer.login");
}
```
- Defined in src/ui/dialogs/authDialog.ts:32