refactor(desktop): wire PipelineResultPreview into PipelinesPanel

Replace the inline ResultModal with the full-featured
PipelineResultPreview component. This gives users JSON/Markdown/
Classroom mode switching, file download cards, and classroom export
support instead of the previous basic PresentationContainer wrapper.

Remove unused ResultModal component and PresentationContainer import.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

desktop/src/components/PipelinesPanel.tsx

@@ -18,6 +18,7 @@ import {
   Filter,
   X,
 } from 'lucide-react';
+import { PipelineResultPreview } from './PipelineResultPreview';
 import {
   PipelineClient,
   PipelineInfo,
@@ -28,7 +29,6 @@ import {
   formatInputType,
 } from '../lib/pipeline-client';
 import { useToast } from './ui/Toast';
-import { PresentationContainer } from './presentation';
 
 // === Category Badge Component ===
 
@@ -117,64 +117,6 @@ function PipelineCard({ pipeline, onRun }: PipelineCardProps) {
   );
 }
 
-// === Pipeline Result Modal ===
-
-interface ResultModalProps {
-  result: PipelineRunResponse;
-  pipeline: PipelineInfo;
-  onClose: () => void;
-}
-
-function ResultModal({ result, pipeline, onClose }: ResultModalProps) {
-  return (
-    <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
-      <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl w-[90vw] max-w-4xl h-[85vh] flex flex-col mx-4">
-        {/* Header */}
-        <div className="flex items-center justify-between p-4 border-b border-gray-200 dark:border-gray-700">
-          <div className="flex items-center gap-3">
-            <span className="text-2xl">{pipeline.icon}</span>
-            <div>
-              <h2 className="text-lg font-semibold text-gray-900 dark:text-white">
-                {pipeline.displayName} - 执行结果
-              </h2>
-              <p className="text-sm text-gray-500 dark:text-gray-400">
-                状态: {result.status === 'completed' ? '已完成' : '失败'}
-              </p>
-            </div>
-          </div>
-          <button
-            onClick={onClose}
-            className="p-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded"
-          >
-            <X className="w-5 h-5 text-gray-500" />
-          </button>
-        </div>
-
-        {/* Content */}
-        <div className="flex-1 overflow-hidden">
-          {result.outputs ? (
-            <PresentationContainer
-              data={result.outputs}
-              pipelineId={pipeline.id}
-              supportedTypes={['document', 'chart', 'quiz', 'slideshow']}
-            />
-          ) : result.error ? (
-            <div className="p-6 text-center text-red-500">
-              <XCircle className="w-8 h-8 mx-auto mb-2" />
-              <p>{result.error}</p>
-            </div>
-          ) : (
-            <div className="p-6 text-center text-gray-500">
-              <Package className="w-8 h-8 mx-auto mb-2" />
-              <p>无输出结果</p>
-            </div>
-          )}
-        </div>
-      </div>
-    </div>
-  );
-}
-
 // === Pipeline Run Modal ===
 
 interface RunModalProps {
@@ -602,11 +544,11 @@ export function PipelinesPanel() {
         />
       )}
 
-      {/* Result Modal */}
+      {/* Result Preview */}
       {runResult && (
-        <ResultModal
+        <PipelineResultPreview
           result={runResult.result}
-          pipeline={runResult.pipeline}
+          pipelineId={runResult.pipeline.id}
           onClose={() => setRunResult(null)}
         />
       )}