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/ReportDetail.tsx

@@ -0,0 +1,110 @@
+/**
+ * 报告详情页组件
+ */
+import { useState } from 'react';
+import { ArrowLeft, FileCheck, Tag } from 'lucide-react';
+import type { ReviewReport } from '../types';
+import EditorialReport from './EditorialReport';
+import MethodologyReport from './MethodologyReport';
+
+interface ReportDetailProps {
+  report: ReviewReport;
+  onBack: () => void;
+}
+
+export default function ReportDetail({ report, onBack }: ReportDetailProps) {
+  const [activeTab, setActiveTab] = useState<'editorial' | 'methodology'>('editorial');
+
+  const hasEditorial = !!report.editorialReview;
+  const hasMethodology = !!report.methodologyReview;
+
+  // 如果只有方法学，默认显示方法学
+  const effectiveTab = activeTab === 'editorial' && !hasEditorial && hasMethodology ? 'methodology' : activeTab;
+
+  return (
+    <div className="flex-1 flex flex-col h-full bg-slate-50 relative fade-in">
+      {/* 顶部导航栏 */}
+      <header className="h-16 bg-white border-b border-gray-200 px-6 flex items-center justify-between sticky top-0 z-20 shadow-sm">
+        <div className="flex items-center gap-4">
+          <button 
+            onClick={onBack}
+            className="flex items-center gap-2 text-slate-500 hover:text-slate-800 transition-colors px-2 py-1 rounded hover:bg-slate-100"
+          >
+            <ArrowLeft className="w-5 h-5" />
+            <span className="text-sm font-medium">返回列表</span>
+          </button>
+          <div className="h-6 w-px bg-slate-200" />
+          <div>
+            <h1 className="text-base font-bold text-slate-800 flex items-center gap-2">
+              {report.fileName}
+              {report.overallScore && (
+                <span className={`tag ${
+                  report.overallScore >= 80 ? 'tag-green' : 
+                  report.overallScore >= 60 ? 'tag-amber' : 'tag-red'
+                }`}>
+                  {report.overallScore}分
+                </span>
+              )}
+            </h1>
+          </div>
+        </div>
+        <div className="flex items-center gap-3">
+          <button className="px-3 py-1.5 bg-indigo-600 text-white rounded text-sm font-medium hover:bg-indigo-700 transition shadow-sm flex items-center gap-2">
+            <FileCheck className="w-4 h-4" />
+            导出报告
+          </button>
+        </div>
+      </header>
+
+      {/* 内容区域 */}
+      <div className="flex-1 overflow-auto p-8 max-w-5xl mx-auto w-full">
+        {/* Tab切换 */}
+        {(hasEditorial || hasMethodology) && (
+          <div className="flex gap-1 bg-slate-200/50 p-1 rounded-lg mb-8 w-fit mx-auto">
+            {hasEditorial && (
+              <button 
+                onClick={() => setActiveTab('editorial')}
+                className={`px-6 py-2 rounded-md text-sm transition-all ${
+                  effectiveTab === 'editorial' 
+                    ? 'font-bold bg-white text-indigo-600 shadow-sm' 
+                    : 'font-medium text-slate-500 hover:text-slate-700'
+                }`}
+              >
+                稿约规范性 ({report.editorialReview?.overall_score}分)
+              </button>
+            )}
+            {hasMethodology && (
+              <button 
+                onClick={() => setActiveTab('methodology')}
+                className={`px-6 py-2 rounded-md text-sm transition-all ${
+                  effectiveTab === 'methodology'
+                    ? 'font-bold bg-white text-indigo-600 shadow-sm'
+                    : 'font-medium text-slate-500 hover:text-slate-700'
+                }`}
+              >
+                方法学评估 ({report.methodologyReview?.overall_score}分)
+              </button>
+            )}
+          </div>
+        )}
+
+        {/* 报告内容 */}
+        {effectiveTab === 'editorial' && report.editorialReview && (
+          <EditorialReport data={report.editorialReview} />
+        )}
+        {effectiveTab === 'methodology' && report.methodologyReview && (
+          <MethodologyReport data={report.methodologyReview} />
+        )}
+
+        {/* 无数据状态 */}
+        {!hasEditorial && !hasMethodology && (
+          <div className="text-center py-12 text-slate-500">
+            <Tag className="w-12 h-12 mx-auto mb-4 text-slate-300" />
+            <p>暂无评估报告</p>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}
+