fix(v0.4.1): route all workspace commands through SearchRoots

Every resolver, lister, and most-recent caller now passes
config.SearchRoots() so CTASK_PROJECT_ROOT is searched alongside
CTASK_ROOT. Commands use ws.Root when rendering relative paths or
session env vars so displays and CTASK_ROOT exports are correct for
workspaces living under CTASK_PROJECT_ROOT.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

cmd/info.go

@@ -24,8 +24,8 @@ func init() {
 }
 
 func runInfo(cmd *cobra.Command, args []string) error {
-	root := config.ResolveRoot()
-	ws := resolveOne(root, args[0], infoAll)
+	roots := config.SearchRoots()
+	ws := resolveOne(roots, args[0], infoAll)
 	m := ws.Meta
 
 	fmt.Printf("Task:      %s\n", m.Slug)