feat(vip): Batch 3 dedicated user-center VIP tab

Register 我的会员 panel, zibll-style status/equity cards, sidebar deep-link,
and slim credits-tab entry so VIP is no longer nested only under assets.

assets/css/routes/user-center/credits.css

@@ -1075,3 +1075,13 @@ body.uc-modal-open {
   height: 100%;
   background: linear-gradient(90deg, #22c55e, #16a34a);
 }
+
+/* VIP tab */
+.uc-vip-tab .user-content-myvip{position:relative;padding:16px;margin-bottom:16px}
+.uc-vip-level-cards{display:flex;flex-wrap:wrap;gap:12px}
+.uc-vip-level-card{position:relative;flex:1 1 240px;padding:18px 14px;overflow:hidden}
+.uc-vip-level-card .v-equity{text-align:left;margin:10px 0 14px;padding-left:1.1em;font-size:13px;line-height:1.55}
+.uc-vip-level-card .pay-vip{display:inline-block;margin-top:4px}
+.uc-vip-assets-entry{gap:12px}
+.jb-vip1{background:linear-gradient(90deg,#f6c453,#f39c12);color:#3b2a00;border:0}
+.jb-vip2{background:linear-gradient(90deg,#8e44ad,#3f51b5);color:#fff;border:0}