收口大鱼结果页空态

将大鱼吃小鱼结果页缺草稿提示迁移到 PlatformEmptyState

补充缺草稿空态公共组件断言

更新 PlatformUiKit 文档和 Hermes 决策记录

src/components/big-fish-result/BigFishResultView.test.tsx

@@ -157,6 +157,26 @@ function createSession(): BigFishSessionSnapshotResponse {
 }
 
 describe('BigFishResultView', () => {
+  test('uses PlatformEmptyState chrome when draft is missing', () => {
+    render(
+      <BigFishResultView
+        session={{
+          ...createSession(),
+          draft: null,
+        }}
+        onBack={() => {}}
+        onExecuteAction={() => {}}
+        onStartTestRun={() => {}}
+      />,
+    );
+
+    const emptyState = screen.getByText('还没有可编辑的玩法草稿');
+
+    expect(emptyState.className).toContain('platform-empty-state');
+    expect(emptyState.className).toContain('bg-white/74');
+    expect(emptyState.className).toContain('text-[var(--platform-text-base)]');
+  });
+
   test('renders generated formal previews with accurate status copy', () => {
     render(
       <BigFishResultView

src/components/big-fish-result/BigFishResultView.tsx

@@ -17,6 +17,7 @@ import type {
   ExecuteBigFishActionRequest,
 } from '../../../packages/shared/src/contracts/bigFish';
 import { PlatformActionButton } from '../common/PlatformActionButton';
+import { PlatformEmptyState } from '../common/PlatformEmptyState';
 import { PlatformFieldLabel } from '../common/PlatformFieldLabel';
 import { PlatformIconBadge } from '../common/PlatformIconBadge';
 import { PlatformMediaFrame } from '../common/PlatformMediaFrame';
@@ -374,14 +375,13 @@ export function BigFishResultView({
   if (!draft) {
     return (
       <div className="flex h-full items-center justify-center">
-        <PlatformSubpanel
-          as="div"
-          radius="sm"
-          padding="none"
-          className="px-5 py-4 text-sm text-[var(--platform-text-base)]"
+        <PlatformEmptyState
+          surface="subpanel"
+          size="compact"
+          tone="base"
         >
           还没有可编辑的玩法草稿
-        </PlatformSubpanel>
+        </PlatformEmptyState>
       </div>
     );
   }