feat: add cards templete

internal/economy/handler.go

@@ -176,6 +176,23 @@ func (h *Handler) TablesInfo(w http.ResponseWriter, r *http.Request) {
 	})
 }
 
+// Leaderboard — GET /api/leaderboard (جدولِ رتبه‌بندیِ فصل)
+func (h *Handler) Leaderboard(w http.ResponseWriter, r *http.Request) {
+	if _, ok := uid(r); !ok {
+		httpx.Error(w, http.StatusUnauthorized, "unauthorized")
+		return
+	}
+	list, err := h.svc.Leaderboard(r.Context(), 50)
+	if err != nil {
+		httpx.Error(w, http.StatusInternalServerError, "server error")
+		return
+	}
+	httpx.JSON(w, http.StatusOK, map[string]any{
+		"season":  h.svc.Season(r.Context()),
+		"entries": list,
+	})
+}
+
 // Daily — POST /api/rewards/daily
 func (h *Handler) Daily(w http.ResponseWriter, r *http.Request) {
 	id, ok := uid(r)