Tighten SCUM plugin console UI

platform_web/pages/ServerDetailPage.test.tsx

@@ -175,6 +175,7 @@ describe("ServerDetailPage config write approval", () => {
     expect(serverDetailPageSource).toContain("plugin:${page.key}");
     expect(serverDetailPageSource).toContain("ServerDetailSectionNav");
     expect(serverDetailPageSource).toContain('aria-label="游戏运营功能"');
+    expect(serverDetailPageSource).toContain("server-plugin-section-picker-active");
     expect(serverDetailPageSource).toContain('section === "files"');
     expect(serverDetailPageSource).toContain("PluginPageSection");
     expect(serverDetailPageSource).toContain("PluginPageHostPage");

platform_web/pages/ServerDetailPage.tsx

@@ -272,7 +272,7 @@ function ServerDetailSectionNav({ entries, section, onChange }: { entries: Array
   return (
     <nav className="section-tabs" aria-label="server sections">
       {pluginEntries.length > 0 && (
-        <label className="server-plugin-section-picker">
+        <label className={cx("server-plugin-section-picker", activePluginSection && "server-plugin-section-picker-active")}>
           <span>游戏运营</span>
           <select aria-label="游戏运营功能" value={activePluginSection} onChange={(event) => event.target.value && onChange(event.target.value as ServerDetailSection)}>
             <option value="" disabled>选择功能</option>