fix(media-card): 修复媒体卡片文字过长被裁切的问题

修改了媒体卡片内容的文字样式，移除文本溢出省略和强制不换行设置，改为支持自动换行；新增测试用例验证长文字的换行展示行为。

WonderQ-Admin-UI-Vue/src/pages/MediaPage.test.ts

@@ -0,0 +1,14 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+
+const styles = readFileSync(new URL("../styles.css", import.meta.url), "utf8");
+
+describe("媒体素材卡片文字", () => {
+  it("长标题和长 URL 应换行展示而不是被裁切", () => {
+    const cardTextRule = styles.match(/\.media-card-content strong,[\s\S]*?\.media-card-content small \{([\s\S]*?)\n\}/)?.[1] ?? "";
+
+    expect(cardTextRule).toContain("overflow-wrap: anywhere;");
+    expect(cardTextRule).toContain("word-break: break-word;");
+    expect(cardTextRule).toContain("white-space: normal;");
+  });
+});

WonderQ-Admin-UI-Vue/src/styles.css

@@ -425,13 +425,23 @@ input {
   gap: 5px;
   padding: 10px;
 }
+.media-card-content strong,
+.media-card-content span,
+.media-card-content small {
+  display: block;
+  overflow-wrap: anywhere;
+  word-break: break-word;
+  white-space: normal;
+}
+.media-card-content strong {
+  color: var(--ink);
+  line-height: 1.45;
+}
 .media-card-content span,
 .media-card-content small {
-  overflow: hidden;
   color: var(--muted);
   font-size: 11px;
-  text-overflow: ellipsis;
-  white-space: nowrap;
+  line-height: 1.45;
 }
 .media-card-content small {
   color: #94a3b8;