继续收口浅色返回按钮

将统一创作页与多个浅色工作台返回入口切换为 PlatformBackActionButton
按页面保留 compact 与 regular 返回尺寸及禁用态
清理冗余 ArrowLeft 引用并完成对应页面定向验证

src/components/unified-creation/workspaces/JumpHopCreationWorkspace.tsx

@@ -1,4 +1,4 @@
-import { ArrowLeft, Loader2, Send } from 'lucide-react';
+import { Loader2, Send } from 'lucide-react';
 import { useMemo, useState } from 'react';
 
 import type {
@@ -7,6 +7,7 @@ import type {
 } from '../../../../packages/shared/src/contracts/jumpHop';
 import { jumpHopClient } from '../../../services/jump-hop/jumpHopClient';
 import { PlatformActionButton } from '../../common/PlatformActionButton';
+import { PlatformBackActionButton } from '../../common/PlatformBackActionButton';
 import { PlatformFieldLabel } from '../../common/PlatformFieldLabel';
 import { PlatformStatusMessage } from '../../common/PlatformStatusMessage';
 import { PlatformTextField } from '../../common/PlatformTextField';
@@ -99,15 +100,12 @@ export function JumpHopCreationWorkspace({
     >
       {showBackButton ? (
         <div className="mb-3 flex items-center justify-between gap-3">
-          <PlatformActionButton
+          <PlatformBackActionButton
             onClick={onBack}
-            tone="ghost"
-            size="sm"
-            className="min-h-0 px-3 py-2"
-          >
-            <ArrowLeft className="h-4 w-4" />
-            返回
-          </PlatformActionButton>
+            disabled={isBusy}
+            variant="regular"
+            className="px-3"
+          />
         </div>
       ) : null}
 

src/components/unified-creation/workspaces/PuzzleCreationWorkspace.tsx

@@ -1,4 +1,3 @@
-import { ArrowLeft } from 'lucide-react';
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 
 import type { PuzzleAgentActionRequest } from '../../../../packages/shared/src/contracts/puzzleAgentActions';
@@ -19,6 +18,7 @@ import {
   type CreativeImageInputReferenceImage,
 } from '../../common/CreativeImageInputPanel';
 import { PlatformActionButton } from '../../common/PlatformActionButton';
+import { PlatformBackActionButton } from '../../common/PlatformBackActionButton';
 import { PlatformMudPointConfirmDialog } from '../../common/PlatformMudPointConfirmDialog';
 import { PlatformPillBadge } from '../../common/PlatformPillBadge';
 import { SquareImageCropModal } from '../../common/SquareImageCropModal';
@@ -630,16 +630,11 @@ export function PuzzleCreationWorkspace({
     >
       {showBackButton ? (
         <div className="mb-3 flex shrink-0 items-center justify-between gap-3 sm:mb-4">
-          <PlatformActionButton
+          <PlatformBackActionButton
             onClick={onBack}
             disabled={isBusy}
-            tone="ghost"
-            size="xs"
-            className="min-h-0 self-start gap-1.5 px-3 py-1.5 text-[11px]"
-          >
-            <ArrowLeft className="h-3.5 w-3.5" />
-            返回
-          </PlatformActionButton>
+            className="px-3"
+          />
         </div>
       ) : null}
 

src/components/unified-creation/workspaces/WoodenFishCreationWorkspace.tsx

@@ -1,4 +1,4 @@
-import { ArrowLeft, Loader2, Plus, Send, X } from 'lucide-react';
+import { Loader2, Plus, Send, X } from 'lucide-react';
 import { useMemo, useState } from 'react';
 
 import type {
@@ -20,6 +20,7 @@ import {
 } from '../../common/creativeAudioProcessing';
 import { CreativeImageInputPanel } from '../../common/CreativeImageInputPanel';
 import { PlatformActionButton } from '../../common/PlatformActionButton';
+import { PlatformBackActionButton } from '../../common/PlatformBackActionButton';
 import { PlatformIconButton } from '../../common/PlatformIconButton';
 import { PlatformStatusMessage } from '../../common/PlatformStatusMessage';
 import { PlatformSubpanel } from '../../common/PlatformSubpanel';
@@ -190,15 +191,12 @@ export function WoodenFishCreationWorkspace({
     >
       {showBackButton ? (
         <div className="mb-3 flex items-center justify-between gap-3">
-          <PlatformActionButton
+          <PlatformBackActionButton
             onClick={onBack}
-            tone="ghost"
-            size="sm"
-            className="min-h-0 px-3 py-2"
-          >
-            <ArrowLeft className="h-4 w-4" />
-            返回
-          </PlatformActionButton>
+            disabled={isBusy || isSubmitting}
+            variant="regular"
+            className="px-3"
+          />
         </div>
       ) : null}