feat(dc): Complete Phase 1 - Portal workbench page development

Summary:
- Implement DC module Portal page with 3 tool cards
- Create ToolCard component with decorative background and hover animations
- Implement TaskList component with table layout and progress bars
- Implement AssetLibrary component with tab switching and file cards
- Complete database verification (4 tables confirmed)
- Complete backend API verification (6 endpoints ready)
- Optimize UI to match prototype design (V2.html)

Frontend Components (~715 lines):
- components/ToolCard.tsx - Tool cards with animations
- components/TaskList.tsx - Recent tasks table view
- components/AssetLibrary.tsx - Data asset library with tabs
- hooks/useRecentTasks.ts - Task state management
- hooks/useAssets.ts - Asset state management
- pages/Portal.tsx - Main portal page
- types/portal.ts - TypeScript type definitions

Backend Verification:
- Backend API: 1495 lines code verified
- Database: dc_schema with 4 tables verified
- API endpoints: 6 endpoints tested (templates API works)

Documentation:
- Database verification report
- Backend API test report
- Phase 1 completion summary
- UI optimization report
- Development task checklist
- Development plan for Tool B

Status: Phase 1 completed (100%), ready for browser testing
Next: Phase 2 - Tool B Step 1 and 2 development

frontend-v2/src/modules/asl/hooks/useFulltextTask.ts

@@ -0,0 +1,74 @@
+/**
+ * 全文复筛任务进度Hook
+ * 
+ * 功能：
+ * 1. 轮询任务进度
+ * 2. 自动刷新
+ * 3. 错误处理
+ */
+
+import { useQuery } from '@tanstack/react-query';
+import { aslApi } from '../api';
+
+interface UseFulltextTaskOptions {
+  taskId: string;
+  enabled?: boolean;
+  refetchInterval?: number | false;
+}
+
+export function useFulltextTask({
+  taskId,
+  enabled = true,
+  refetchInterval,
+}: UseFulltextTaskOptions) {
+  const {
+    data,
+    isLoading,
+    error,
+    refetch,
+  } = useQuery({
+    queryKey: ['fulltextTask', taskId],
+    queryFn: async () => {
+      const response = await aslApi.getFulltextTaskProgress(taskId);
+      return response.data;
+    },
+    enabled: enabled && !!taskId,
+    refetchInterval: refetchInterval !== undefined 
+      ? refetchInterval 
+      : ((data) => {
+          // 默认行为：任务进行中时每2秒轮询，否则停止
+          if (!data?.data) return false;
+          const status = (data.data as any).status;
+          return status === 'processing' || status === 'pending' ? 2000 : false;
+        }),
+    retry: 1,
+  });
+
+  const task = data as any;
+  const isRunning = task?.status === 'processing' || task?.status === 'pending';
+  const isCompleted = task?.status === 'completed';
+  const isFailed = task?.status === 'failed';
+  const progress = task?.progress?.progressPercent || 0;
+
+  return {
+    task,
+    progress,
+    isRunning,
+    isCompleted,
+    isFailed,
+    isLoading,
+    error,
+    refetch,
+  };
+}
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