Function prepare_analysis_discovery_with_workspaces 

pub fn prepare_analysis_discovery_with_workspaces(
    config: &ResolvedConfig,
    workspaces: &[WorkspaceInfo],
    workspaces_ms: f64,
) -> AnalysisDiscovery

Run source discovery with workspace metadata already resolved by config load.

This is the normal AnalysisSession path: config loading already expanded workspace globs and collected diagnostics, so source discovery can reuse that set instead of walking workspace manifests a second time.