feat: 添加平台管理、计算模块适配器及前端页面更新

- 新增 platform API 端点和存储
- 新增 llama_factory 适配器
- 新增前端 compute、guide、system 等视图页面
- 新增 echarts 插件和 mock 数据
- 更新 Docker 配置、后端配置及文档
- 更新前端路由、API、侧边栏等组件

Co-Authored-By: Claude <noreply@anthropic.com>

docker/app/.env.example

@@ -2,6 +2,15 @@ APP_ENV=prod
 APP_NAME=YG Fine-Tune Platform API
 API_PREFIX=/api
 
+FRONTEND_IMAGE=yg-ft-frontend-runtime:latest
+BACKEND_API_IMAGE=yg-ft-backend-api:latest
+
+# Five-digit host ports exposed outside the application server.
+FRONTEND_PORT=16801
+BACKEND_API_PORT=17861
+POSTGRES_PORT=15432
+REDIS_PORT=16379
+
 POSTGRES_DB=yg_ft
 POSTGRES_USER=yg_ft
 POSTGRES_PASSWORD=change_me
@@ -23,7 +32,7 @@ LOG_RETENTION_DAYS=10
 
 API_PROXY_PASS=http://backend-api:8000
 
-# Split deployment: set these to the compute server address, for example http://10.10.20.31:9100.
+# Split deployment: set these to the compute server address, for example http://10.10.20.31:19100.
 COMPUTE_API_BASE_URL=http://compute-api:9100
 COMPUTE_SERVICE_TOKEN=change_me
 FILE_GATEWAY_BASE_URL=http://compute-api:9101