fix: 修复身份与形态图库历史图片布局

src/admin.css

@@ -792,10 +792,24 @@ body {
     height: auto;
     overflow: hidden;
 }
+.image-history.n-scrollbar {
+    width: 100%;
+    max-width: 100%;
+    min-width: 0;
+}
+.image-history-heading {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: center;
+    justify-content: space-between;
+    gap: 6px 16px;
+    margin-block: 16px 8px;
+    font-size: 12px;
+}
 .image-history-content {
     display: flex;
     gap: 12px;
-    padding: 4px 4px 8px;
+    padding: 4px 4px 12px;
     width: max-content;
 }
 .code-scroll.n-scrollbar {
@@ -876,6 +890,7 @@ body {
     width: 100%;
     height: 100%;
     min-height: 0;
+    min-width: 0;
     display: flex;
     justify-content: center;
 }
@@ -884,6 +899,12 @@ body {
     height: 100%;
     object-fit: contain;
 }
+/* 预览尺寸不随原图分辨率增长，历史缩略图也不能被按钮默认宽度覆盖。 */
+.asset-image.asset-image-preview {
+    height: min(42dvh, 420px);
+    min-height: 0;
+    aspect-ratio: auto;
+}
 .n-button__content {
     gap: 6px;
 }
@@ -891,15 +912,46 @@ body {
     opacity: 1;
 }
 .n-button.image-history-item {
+    width: 128px;
+    min-width: 128px;
+    max-width: 128px;
+    flex: 0 0 128px;
     height: auto;
+    padding: 6px;
     white-space: normal;
 }
+.n-button.image-history-item.selected {
+    background: var(--app-subtle);
+    box-shadow: inset 0 0 0 2px var(--app-ink);
+}
 .n-button.image-history-item .n-button__content {
     display: block;
     width: 100%;
     text-align: left;
     overflow: hidden;
 }
+.image-history-item .asset-image {
+    height: 88px;
+    min-height: 0;
+    aspect-ratio: auto;
+}
+.image-history-label {
+    display: block;
+    margin-top: 6px;
+    font-size: 11px;
+    line-height: 1.5;
+    overflow-wrap: anywhere;
+}
+.image-history-meta {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 4px;
+    margin-top: 6px;
+    color: var(--app-muted);
+    font-size: 10px;
+    line-height: 1.5;
+}
 /* 选角进度按抽屉实际宽度排列；按钮尺寸显式覆盖组件默认值。 */
 .casting-list {
     display: grid;