feat(rvw): Complete Phase 4-5 - Bug fixes and Word export

Summary:
- Fix methodology score display issue in task list (show score instead of 'warn')
- Add methodology_score field to database schema
- Fix report display when only methodology agent is selected
- Implement Word document export using docx library
- Update documentation to v3.0/v3.1

Backend changes:
- Add methodologyScore to Prisma schema and TaskSummary type
- Update reviewWorker to save methodologyScore
- Update getTaskList to return methodologyScore

Frontend changes:
- Install docx and file-saver libraries
- Implement handleExportReport with Word generation
- Fix activeTab auto-selection based on available data
- Add proper imports for docx components

Documentation:
- Update RVW module status to 90% (Phase 1-5 complete)
- Update system status document to v3.0

Tested: All review workflows verified, Word export functional

frontend-v2/src/modules/rvw/components/Sidebar.tsx

@@ -0,0 +1,73 @@
+/**
+ * RVW侧边栏组件
+ */
+import { LayoutGrid, Archive, Settings, BrainCircuit } from 'lucide-react';
+
+interface SidebarProps {
+  currentView: 'dashboard' | 'archive';
+  onViewChange: (view: 'dashboard' | 'archive') => void;
+  onSettingsClick?: () => void;
+}
+
+export default function Sidebar({ currentView, onViewChange, onSettingsClick }: SidebarProps) {
+  return (
+    <aside className="w-[72px] bg-slate-900 flex flex-col items-center py-6 gap-4 z-20 shadow-xl flex-shrink-0 relative">
+      {/* Logo */}
+      <div 
+        className="w-10 h-10 bg-indigo-500 rounded-xl flex items-center justify-center text-white shadow-lg mb-4"
+        title="智能审稿系统"
+      >
+        <BrainCircuit className="w-6 h-6" />
+      </div>
+      
+      {/* 审稿工作台 */}
+      <button
+        onClick={() => onViewChange('dashboard')}
+        className={`sidebar-btn w-10 h-10 rounded-lg flex items-center justify-center transition-colors relative group
+          ${currentView === 'dashboard' 
+            ? 'bg-white/10 text-white' 
+            : 'text-slate-400 hover:bg-white/10 hover:text-white'
+          }`}
+        title="审稿工作台"
+      >
+        <LayoutGrid className="w-5 h-5" />
+        <span className="sidebar-tooltip">审稿工作台</span>
+      </button>
+      
+      {/* 历史归档 */}
+      <button
+        onClick={() => onViewChange('archive')}
+        className={`sidebar-btn w-10 h-10 rounded-lg flex items-center justify-center transition-colors relative group
+          ${currentView === 'archive'
+            ? 'bg-white/10 text-white'
+            : 'text-slate-400 hover:bg-white/10 hover:text-white'
+          }`}
+        title="历史归档"
+      >
+        <Archive className="w-5 h-5" />
+        <span className="sidebar-tooltip">历史归档</span>
+      </button>
+      
+      {/* 底部区域 */}
+      <div className="mt-auto flex flex-col gap-4 relative">
+        {/* 系统设置 */}
+        <button
+          onClick={onSettingsClick}
+          className="sidebar-btn w-10 h-10 rounded-lg text-slate-400 flex items-center justify-center hover:bg-white/10 hover:text-white transition-colors relative group"
+          title="系统设置"
+        >
+          <Settings className="w-5 h-5" />
+          <span className="sidebar-tooltip">系统设置</span>
+        </button>
+        
+        {/* 用户头像 */}
+        <div className="relative">
+          <div className="w-10 h-10 rounded-full bg-gradient-to-tr from-indigo-500 to-purple-500 flex items-center justify-center text-xs font-bold text-white border-2 border-slate-700 cursor-pointer hover:border-white transition-all shadow-md">
+            编辑
+          </div>
+        </div>
+      </div>
+    </aside>
+  );
+}
+