feat(profiles): add pending count to profile card stats

app/routers/web.py

@@ -644,6 +644,7 @@ def profile_list(request: Request, user: User = Depends(get_current_user_web), d
         cards = db.query(Postcard).filter(Postcard.profile_id == p.id).all()
         extras[p.id] = {
             "total": len(cards),
+            "pending": sum(1 for c in cards if c.status == "pending"),
             "sent": sum(1 for c in cards if c.status == "sent"),
             "delivered": sum(1 for c in cards if c.status == "delivered"),
             "received": sum(1 for c in cards if c.status == "received"),