Function restore_resolved_project 

pub fn restore_resolved_project(
    root: &Path,
    modules: &[ModuleInfo],
    files: &[DiscoveredFile],
    cached: &CachedResolvedProject,
) -> Option<ResolvedProject>

Restore a resolved project from cached resolver payloads and current parsed modules.

Returns None if the payload no longer aligns with the current parse result. A normal graph-cache manifest hit should keep these aligned; this extra check keeps corrupt or hand-edited cache files on the safe miss path.