refactor(routes): replace route retrieval with GetIncludeExcluded

- Updated route retrieval in the API and idle watcher to use GetIncludeExcluded, allowing for the inclusion of excluded routes.
- Simplified the route status aggregation logic by directly using GetIncludeExcluded for display name resolution.
- Removed redundant code that separately handled excluded routes, streamlining the route management process.

internal/idlewatcher/watcher.go

@@ -173,7 +173,7 @@ func NewWatcher(parent task.Parent, r types.Route, cfg *types.IdlewatcherConfig)
 		}
 
 		if !ok {
-			depRoute, ok = routes.Get(dep)
+			depRoute, ok = routes.GetIncludeExcluded(dep)
 			if !ok {
 				depErrors.Addf("dependency %q not found", dep)
 				continue