feat: 完善知识库、策略预览与OnlyOffice集成

## 配置与环境
- .env.example: 更新环境变量配置
- docker-compose.yml: 完善Docker编排配置
- docker/README.md: 更新Docker文档

## 后端知识库模块
- endpoints/knowledge.py: 增强知识库API端点
- schemas/knowledge.py: 扩展知识库数据模型
- services/knowledge.py: 完善知识库业务逻辑
- config.py: 优化配置管理
- storage/knowledge/.index.json: 更新知识库索引

## 前端功能
- api.js: 完善API服务层
- knowledge.js: 优化知识库服务
- onlyoffice.js: 新增OnlyOffice文档服务集成
- TopBar.vue: 优化顶部导航栏
- PoliciesView.vue: 完善策略视图
- AppShellRouteView.vue: 新增应用外壳路由视图
- views/scripts/PoliciesView.js: 优化策略脚本
- policiesPreviewFormatters.js: 新增策略预览格式化工具

## 样式
- policies-view.css: 完善策略页样式

## 测试
- api-request.test.mjs: API请求测试
- onlyoffice-service.test.mjs: OnlyOffice服务测试
- policies-preview-formatters.test.mjs: 策略预览格式化测试

docker-compose.yml

@@ -4,12 +4,18 @@ services:
     container_name: x-financial-main
     restart: unless-stopped
     depends_on:
+      onlyoffice:
+        condition: service_started
       postgres:
         condition: service_healthy
     environment:
       WEB_HOST: 0.0.0.0
       SERVER_HOST: 0.0.0.0
       SERVER_VENV_DIR: /tmp/x-financial-server-venv
+      ONLYOFFICE_ENABLED: "${ONLYOFFICE_ENABLED:-true}"
+      ONLYOFFICE_PUBLIC_URL: "${ONLYOFFICE_PUBLIC_URL:-http://127.0.0.1:${ONLYOFFICE_PORT:-8082}}"
+      ONLYOFFICE_BACKEND_URL: "${ONLYOFFICE_BACKEND_URL:-http://main:${SERVER_PORT:-8000}}"
+      ONLYOFFICE_JWT_SECRET: "${ONLYOFFICE_JWT_SECRET:-x-financial-onlyoffice-dev-secret}"
     ports:
       - "${WEB_PORT:-5173}:${WEB_PORT:-5173}"
       - "${SERVER_PORT:-8000}:${SERVER_PORT:-8000}"
@@ -33,6 +39,22 @@ services:
       retries: 10
       start_period: 180s
 
+  onlyoffice:
+    image: onlyoffice/documentserver:latest
+    container_name: x-financial-onlyoffice
+    restart: unless-stopped
+    environment:
+      JWT_ENABLED: "true"
+      JWT_SECRET: "${ONLYOFFICE_JWT_SECRET:-x-financial-onlyoffice-dev-secret}"
+    ports:
+      - "${ONLYOFFICE_PORT:-8082}:80"
+    healthcheck:
+      test: ["CMD-SHELL", "curl -fsS http://127.0.0.1/healthcheck >/dev/null || exit 1"]
+      interval: 15s
+      timeout: 5s
+      retries: 10
+      start_period: 60s
+
   postgres:
     image: postgres:16-alpine
     container_name: x-financial-postgres