feat: 完善项目架构并增强分析页面功能

- 新增项目文档和 Docker 配置
  - 添加 README.md 和 TODO.md 项目文档
  - 为各服务添加 Dockerfile 和 docker-compose 配置

- 重构后端架构
  - 新增 adapter 层（HTTP/Python 适配器）
  - 新增 repository 层（数据访问抽象）
  - 新增 router 模块统一管理路由
  - 新增账单处理 handler

- 扩展前端 UI 组件库
  - 新增 Calendar、DateRangePicker、Drawer、Popover 等组件
  - 集成 shadcn-svelte 组件库

- 增强分析页面功能
  - 添加时间范围筛选器（支持本月默认值）
  - 修复 DateRangePicker 默认值显示问题
  - 优化数据获取和展示逻辑

- 完善分析器服务
  - 新增 FastAPI 服务接口
  - 改进账单清理器实现

docker-compose.yaml

@@ -1,4 +1,81 @@
 services:
+  # SvelteKit 前端服务
+  web:
+    build:
+      context: ./web
+      dockerfile: Dockerfile
+    container_name: billai-web
+    restart: unless-stopped
+    ports:
+      - "3000:3000"
+    environment:
+      NODE_ENV: production
+      HOST: "0.0.0.0"
+      PORT: "3000"
+      # SSR 服务端请求后端的地址（Docker 内部网络）
+      API_URL: "http://server:8080"
+    depends_on:
+      server:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:3000"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 15s
+
+  # Go 后端服务
+  server:
+    build:
+      context: ./server
+      dockerfile: Dockerfile
+    container_name: billai-server
+    restart: unless-stopped
+    ports:
+      - "8080:8080"
+    environment:
+      ANALYZER_URL: "http://analyzer:8001"
+      ANALYZER_MODE: "http"
+      MONGO_URI: "mongodb://admin:password@mongodb:27017"
+      MONGO_DATABASE: "billai"
+    volumes:
+      - ./server/uploads:/app/uploads
+      - ./server/outputs:/app/outputs
+    depends_on:
+      analyzer:
+        condition: service_healthy
+      mongodb:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8080/health"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 10s
+
+  # Python 分析服务 (FastAPI)
+  analyzer:
+    build:
+      context: ./analyzer
+      dockerfile: Dockerfile
+    container_name: billai-analyzer
+    restart: unless-stopped
+    ports:
+      - "8001:8001"
+    environment:
+      ANALYZER_HOST: "0.0.0.0"
+      ANALYZER_PORT: "8001"
+    volumes:
+      # 共享数据目录，用于访问上传的文件
+      - ./server/uploads:/app/uploads
+      - ./server/outputs:/app/outputs
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8001/health"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 10s
+
   mongodb:
     image: mongo:8.0
     container_name: billai-mongodb