fix(table): smooth list empty/loading transitions, no layout jump on entry

Reserve a stable block for the empty/loading state (matching the NoResult
height) and fade the empty state in, so entering a list page no longer jumps
between spinner, empty result, and rows. Apply scroll-table to the antd main
lists and pass emptyMinHeight to the SealTable-based lists.

src/assets/styles/table.less

@@ -9,6 +9,15 @@
   }
 }
 
+@keyframes tableEmptyFadeIn {
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
+}
+
 .scroll-table {
   .ant-table {
     .ant-table-container {
@@ -18,5 +27,27 @@
         scrollbar-color: var(--color-scrollbar-thumb) transparent;
       }
     }
+
+    // Reserve a stable block for the empty/loading state so the first-load
+    // spinner and the empty result occupy the same height as eventual data —
+    // this removes the layout jump when entering the page. Scoped to
+    // `.ant-table-content` so it only targets x-scroll tables (whose empty
+    // row lives here) and leaves fixed-height `scroll.y` tables untouched.
+    // Height must match the `minHeight` passed to <NoResult> in
+    // use-no-resource-result.
+    .ant-table-content {
+      .ant-table-placeholder {
+        > .ant-table-cell {
+          height: calc(100vh - 300px);
+        }
+
+        // NoResult renders nothing while loading and mounts an <Empty> only
+        // once the request settles, so this fires exactly when the empty
+        // state appears — a seamless fade-in instead of a hard pop.
+        .ant-empty {
+          animation: tableEmptyFadeIn 0.3s ease-in-out;
+        }
+      }
+    }
   }
 }