fix(web): explain why Import is disabled once the profile cap is hit

The cap guard on the Import button had no feedback: with the "New profile" tile unrendered, nothing in Into looked selected and Import was simply off. The cap case now flows through the same message slot as a vanished existing target, and the disabled condition reuses that one derivation.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
27e528dfc0Julius Marminge committed on 9/4/2026, 6:20:41 AMparentbda98c8
1 file changedLine totals unavailable