fix: Resolve TypeScript build errors and clean up unused imports

Fixed Build Issues:
- Removed unused imports in ProjectList, ModelList, ProjectForm, DataTable, CardGrid
- Fixed variant type mismatches in TableAction and GridAction interfaces
- Replaced InteractiveTextarea with standard textarea in ProjectForm
- Updated EmptyState usage to use correct component props
- Removed unused ModelCardSkeleton component definition

 Code Cleanup:
- Cleaned up unused Search, Filter, MoreHorizontal, Eye, Edit, Trash2 imports
- Removed unused filters state in DataTable
- Removed unused actions parameter in CardGrid
- Simplified ProjectForm description field implementation
- Fixed EmptyProjectList usage in ProjectList

 Build Status:
- All TypeScript errors resolved
- Hot reload working correctly
- Development server running smoothly on port 5174
- No more compilation warnings or errors

The application now builds successfully with all UI/UX enhancements intact.

apps/desktop/src/components/CardGrid.tsx

@@ -1,5 +1,5 @@
 import React, { useState, useMemo } from 'react';
-import { Grid, List, Search, Filter, SortAsc, SortDesc } from 'lucide-react';
+import { Grid, List,  SortAsc, SortDesc } from 'lucide-react';
 import { SearchInput } from './InteractiveInput';
 import { InteractiveButton } from './InteractiveButton';
 
@@ -13,7 +13,7 @@ export interface GridAction<T> {
   label: string;
   icon?: React.ReactNode;
   onClick: (item: T) => void;
-  variant?: 'default' | 'primary' | 'danger';
+  variant?: 'primary' | 'secondary' | 'danger' | 'success' | 'ghost' | 'outline';
   disabled?: (item: T) => boolean;
 }
 
@@ -87,7 +87,6 @@ export function CardGrid<T extends CardGridItem>({
   emptyText = '暂无数据',
   emptyComponent,
   className = '',
-  actions = [],
   selectedItems = [],
   onSelectionChange,
   bulkActions = [],
@@ -147,15 +146,6 @@ export function CardGrid<T extends CardGridItem>({
 
   // 网格列数类名
   const getGridColsClass = () => {
-    const colsMap = {
-      1: 'grid-cols-1',
-      2: 'grid-cols-2',
-      3: 'grid-cols-3',
-      4: 'grid-cols-4',
-      5: 'grid-cols-5',
-      6: 'grid-cols-6',
-    };
-
     const classes = [];
     if (gridCols.sm) classes.push(`grid-cols-${gridCols.sm}`);
     if (gridCols.md) classes.push(`md:grid-cols-${gridCols.md}`);

apps/desktop/src/components/DataTable.tsx

@@ -1,5 +1,5 @@
 import React, { useState, useMemo } from 'react';
-import { ChevronUp, ChevronDown, Search, Filter, MoreHorizontal, Eye, Edit, Trash2 } from 'lucide-react';
+import { ChevronUp, ChevronDown, Filter } from 'lucide-react';
 import { SearchInput } from './InteractiveInput';
 import { InteractiveButton } from './InteractiveButton';
 
@@ -18,7 +18,7 @@ export interface TableAction<T> {
   label: string;
   icon?: React.ReactNode;
   onClick: (record: T) => void;
-  variant?: 'default' | 'primary' | 'danger';
+  variant?: 'primary' | 'secondary' | 'danger' | 'success' | 'ghost' | 'outline';
   disabled?: (record: T) => boolean;
 }
 
@@ -71,8 +71,6 @@ export function DataTable<T extends Record<string, any>>({
     direction: 'asc' | 'desc';
   } | null>(null);
   const [currentPage, setCurrentPage] = useState(1);
-  const [filters, setFilters] = useState<Record<string, any>>({});
-
   // 获取行的唯一键
   const getRowKey = (record: T, index: number): string => {
     if (typeof rowKey === 'function') {

apps/desktop/src/components/ModelList.tsx

@@ -4,7 +4,6 @@ import { modelService } from '../services/modelService';
 import ModelCard from './ModelCard';
 import ModelForm from './ModelForm';
 import ModelSearch from './ModelSearch';
-import { ModelCardSkeleton } from './SkeletonLoader';
 import {
   PlusIcon,
   Squares2X2Icon,
@@ -185,21 +184,7 @@ const ModelList: React.FC<ModelListProps> = ({ onModelSelect }) => {
 
 
 
-  // 骨架屏组件
-  const ModelCardSkeleton = () => (
-    <div className="bg-white rounded-2xl shadow-sm border border-gray-100 overflow-hidden animate-pulse">
-      <div className="aspect-[3/4] bg-gray-200 loading-shimmer" />
-      <div className="p-5 space-y-3">
-        <div className="h-6 bg-gray-200 rounded loading-shimmer" />
-        <div className="h-4 bg-gray-200 rounded w-3/4 loading-shimmer" />
-        <div className="h-4 bg-gray-200 rounded w-1/2 loading-shimmer" />
-        <div className="flex gap-2 pt-2">
-          <div className="flex-1 h-10 bg-gray-200 rounded-xl loading-shimmer" />
-          <div className="w-10 h-10 bg-gray-200 rounded-xl loading-shimmer" />
-        </div>
-      </div>
-    </div>
-  );
+
 
   if (loading) {
     return (
@@ -222,7 +207,27 @@ const ModelList: React.FC<ModelListProps> = ({ onModelSelect }) => {
         {/* 模特卡片骨架 */}
         <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-6">
           {[...Array(8)].map((_, i) => (
-            <ModelCardSkeleton key={i} />
+            <div key={i} className="bg-white rounded-xl border border-gray-200 p-4 space-y-4 animate-pulse">
+              <div className="flex items-center space-x-3">
+                <div className="h-12 w-12 bg-gray-300 rounded-full"></div>
+                <div className="space-y-2 flex-1">
+                  <div className="h-4 bg-gray-300 rounded w-2/3"></div>
+                  <div className="h-3 bg-gray-300 rounded w-1/2"></div>
+                </div>
+              </div>
+              <div className="space-y-2">
+                <div className="h-3 bg-gray-300 rounded"></div>
+                <div className="h-3 bg-gray-300 rounded w-4/5"></div>
+              </div>
+              <div className="flex gap-2">
+                <div className="h-6 w-16 bg-gray-300 rounded-full"></div>
+                <div className="h-6 w-20 bg-gray-300 rounded-full"></div>
+              </div>
+              <div className="flex gap-2 pt-2">
+                <div className="h-8 bg-gray-300 rounded flex-1"></div>
+                <div className="h-8 w-8 bg-gray-300 rounded"></div>
+              </div>
+            </div>
           ))}
         </div>
       </div>

apps/desktop/src/components/ProjectForm.tsx

@@ -2,9 +2,9 @@ import React, { useState, useEffect } from 'react';
 import { invoke } from '@tauri-apps/api/core';
 import { useProjectStore } from '../store/projectStore';
 import { ProjectFormData, ProjectFormErrors } from '../types/project';
-import { InteractiveInput, InteractiveTextarea } from './InteractiveInput';
+import { InteractiveInput } from './InteractiveInput';
 import { InteractiveButton } from './InteractiveButton';
-import { Folder, X, AlertCircle } from 'lucide-react';
+import { Folder, X } from 'lucide-react';
 
 interface ProjectFormProps {
   initialData?: Partial<ProjectFormData>;
@@ -206,16 +206,35 @@ export const ProjectForm: React.FC<ProjectFormProps> = ({
           </div>
 
           {/* 项目描述 */}
-          <InteractiveTextarea
-            label="项目描述"
-            value={formData.description}
-            onChange={(value) => setFormData(prev => ({ ...prev, description: value }))}
-            placeholder="描述一下这个项目的用途和内容（可选）"
-            error={errors.description}
-            hint="添加描述有助于您更好地管理项目"
-            rows={4}
-            maxLength={500}
-          />
+          <div className="form-group">
+            <label htmlFor="description" className="form-label">
+              项目描述
+            </label>
+            <textarea
+              id="description"
+              className={`form-textarea ${errors.description ? 'error' : ''}`}
+              value={formData.description}
+              onChange={(e) => setFormData(prev => ({ ...prev, description: e.target.value }))}
+              placeholder="描述一下这个项目的用途和内容（可选）"
+              rows={4}
+              maxLength={500}
+            />
+            <div className="flex justify-between items-center">
+              <div className="form-hint">
+                添加描述有助于您更好地管理项目
+              </div>
+              <div className="text-xs text-gray-500">
+                {formData.description.length}/500
+              </div>
+            </div>
+            {errors.description && (
+              <div className="form-error">
+                <span className="text-red-600">
+                  {errors.description}
+                </span>
+              </div>
+            )}
+          </div>
         </form>
 
         {/* 模态框底部 */}

apps/desktop/src/components/ProjectList.tsx

@@ -4,11 +4,11 @@ import { invoke } from '@tauri-apps/api/core';
 import { useProjectStore } from '../store/projectStore';
 import { useUIStore } from '../store/uiStore';
 import { ProjectCard } from './ProjectCard';
-import { EmptyProjectList } from './EmptyState';
+import { EmptyState } from './EmptyState';
 import { LoadingSpinner } from './LoadingSpinner';
 import { ErrorMessage } from './ErrorMessage';
 import { DeleteConfirmDialog } from './DeleteConfirmDialog';
-import { ProjectCardSkeleton, PageLoadingSkeleton } from './SkeletonLoader';
+import { PageLoadingSkeleton } from './SkeletonLoader';
 import { InteractiveButton } from './InteractiveButton';
 import { Plus, Trash2 } from 'lucide-react';
 
@@ -222,7 +222,18 @@ export const ProjectList: React.FC = () => {
       {/* 项目内容区域 */}
       {projects.length === 0 ? (
         <div className="animate-fade-in-up">
-          <EmptyProjectList onCreateProject={openCreateProjectModal} />
+          <EmptyState
+            illustration="folder"
+            title="还没有项目"
+            description="创建您的第一个项目开始使用 MixVideo"
+            actionText="新建项目"
+            onAction={openCreateProjectModal}
+            showTips
+            tips={[
+              "提示：您可以通过拖拽文件夹到此处快速创建项目",
+              "支持导入现有的视频项目文件夹"
+            ]}
+          />
         </div>
       ) : (
         <div className="space-y-6">