fix(ux): improve empty-state messaging for tickets #49 and #57

#49 — upgrade MyVacationsClient account-not-linked inline text to a
prominent centred amber card with icon, heading, and admin-action guidance.

#57 — replace vague AI suggestions hint with actionable copy explaining
the Step 3 dependency before the user wonders why the list is empty.

Co-Authored-By: claude-flow <ruv@ruv.net>

apps/web/src/components/projects/ProjectWizard.tsx

@@ -730,7 +730,7 @@ function ReqSuggestions({
 
   if (!req.requiredSkills.length) {
     return (
-      <p className="text-xs text-amber-600">Add required skills in Step 3 to see suggestions.</p>
+      <p className="text-xs text-amber-600">No skills defined for this demand yet. Go back to Step 3 and add required skills — the AI will then suggest matching resources here.</p>
     );
   }