mirror of
https://github.com/snapotter-hq/SnapOtter.git
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235 lines
7.4 KiB
Markdown
235 lines
7.4 KiB
Markdown
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---
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description: "本地开发环境搭建、命令、代码约定，以及如何为 SnapOtter 添加新工具。"
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i18n_source_hash: cb03724d2829
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i18n_provenance: human
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i18n_output_hash: c9c7c992d6d7
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---
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# 开发者指南 {#developer-guide}
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如何搭建本地开发环境并为 SnapOtter 贡献代码。
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## 前置条件 {#prerequisites}
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- [Node.js](https://nodejs.org/) 22+
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- [pnpm](https://pnpm.io/) 9+（`corepack enable && corepack prepare pnpm@latest --activate`）
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- [Docker](https://www.docker.com/)（本地 Postgres + Redis、容器构建和 AI 功能所必需）
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- Git
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仅当你在开发 AI/ML sidecar（背景移除、放大、OCR）时才需要 Python 3.10+。
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## 搭建环境 {#setup}
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```bash
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git clone https://github.com/snapotter-hq/snapotter.git
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cd snapotter
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docker compose -f docker-compose.dev.yml up -d # start Postgres + Redis
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pnpm install
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pnpm dev
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```
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这会启动两个开发服务器：
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| 服务 | URL | 备注 |
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|----------|--------------------------|------------------------------------|
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| 前端 | http://localhost:1349 | Vite 开发服务器，代理 /api |
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| 后端 | http://localhost:13490 | Fastify API（通过代理访问） |
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在浏览器中打开 http://localhost:1349。使用 `admin` / `admin` 登录。首次登录时会提示你修改密码。
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## 项目结构 {#project-structure}
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```
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apps/
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api/ Fastify backend
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web/ Vite + React frontend
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docs/ VitePress documentation (this site)
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packages/
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shared/ Constants, types, i18n strings
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image-engine/ Sharp-based image operations
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media-engine/ FFmpeg spawn + progress parsing
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doc-engine/ qpdf, LibreOffice, ghostscript wrappers
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ai/ Python sidecar bridge for ML models
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tests/
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unit/ Vitest unit tests
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integration/ Vitest integration tests (full API)
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e2e/ Playwright end-to-end specs
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fixtures/ Small test images
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```
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## 命令 {#commands}
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```bash
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pnpm dev # start frontend + backend
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pnpm build # build all workspaces
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pnpm typecheck # TypeScript check across monorepo
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pnpm lint # Biome lint + format check
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pnpm lint:fix # auto-fix lint + format
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pnpm test # unit + integration tests
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pnpm test:unit # unit tests only
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pnpm test:integration # integration tests only
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pnpm test:e2e # Playwright e2e tests
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pnpm test:coverage # tests with coverage report
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```
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## 代码约定 {#code-conventions}
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- 双引号、分号、2 空格缩进（由 Biome 强制执行）
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- 所有工作区均使用 ES 模块
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- 用于 semantic-release 的 [Conventional commits](https://www.conventionalcommits.org/)
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- 所有 API 输入验证均使用 Zod
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- 不修改 Biome、TypeScript 或编辑器配置文件。请修改代码，而不是 linter。
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## 数据库 {#database}
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通过 Drizzle ORM（pg-core）使用 PostgreSQL 17。本地开发需要运行 Postgres 和 Redis——用以下命令启动它们：
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```bash
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docker compose -f docker-compose.dev.yml up -d
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```
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这会为你提供端口 5432 上的 Postgres 和端口 6379 上的 Redis。然后生成并应用迁移：
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```bash
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cd apps/api
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npx drizzle-kit generate # generate a migration from schema changes
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npx drizzle-kit migrate # apply pending migrations
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```
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架构定义在 `apps/api/src/db/schema.ts`。表：users、sessions、settings、jobs、apiKeys、pipelines、teams、userFiles、roles、auditLog。
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## 添加新工具 {#adding-a-new-tool}
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每个工具都遵循相同的模式。下面是一个最小示例。
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### 1. 后端路由 {#_1-backend-route}
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创建 `apps/api/src/routes/tools/my-tool.ts`：
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```ts
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import { z } from "zod";
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import type { FastifyInstance } from "fastify";
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import { createToolRoute } from "../tool-factory.js";
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const settingsSchema = z.object({
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intensity: z.number().min(0).max(100).default(50),
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});
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export function registerMyTool(app: FastifyInstance) {
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createToolRoute(app, {
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toolId: "my-tool",
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settingsSchema,
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async process(inputBuffer, settings, filename) {
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// Use sharp or other libraries to process the image
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const sharp = (await import("sharp")).default;
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const result = await sharp(inputBuffer)
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// ... your processing logic
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.toBuffer();
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return {
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buffer: result,
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filename: filename.replace(/\.[^.]+$/, ".png"),
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contentType: "image/png",
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};
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},
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});
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}
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```
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然后在 `apps/api/src/routes/tools/index.ts` 中注册它。
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### 2. 前端设置组件 {#_2-frontend-settings-component}
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创建 `apps/web/src/components/tools/my-tool-settings.tsx`：
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```tsx
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import { useState } from "react";
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import { useToolProcessor } from "@/hooks/use-tool-processor";
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import { useFileStore } from "@/stores/file-store";
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export function MyToolSettings() {
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const { files } = useFileStore();
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const { processFiles, processing, error, downloadUrl } =
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useToolProcessor("my-tool");
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const [intensity, setIntensity] = useState(50);
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const handleProcess = () => {
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processFiles(files, { intensity });
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};
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return (
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<div className="space-y-4">
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{/* your controls here */}
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<button
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type="button"
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onClick={handleProcess}
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disabled={files.length === 0 || processing}
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data-testid="my-tool-submit"
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className="w-full py-2.5 rounded-lg bg-primary text-primary-foreground font-medium disabled:opacity-50"
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>
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Process
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</button>
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</div>
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);
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}
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```
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然后在 `apps/web/src/lib/tool-registry.tsx` 的前端工具注册表中注册它：
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```tsx
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// Add the lazy import
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const MyToolSettings = lazy(() =>
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import("@/components/tools/my-tool-settings").then((m) => ({
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default: m.MyToolSettings,
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})),
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);
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// Add to the toolRegistry Map
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["my-tool", { displayMode: "before-after", Settings: MyToolSettings }],
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```
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显示模式：`"side-by-side"`、`"before-after"`、`"live-preview"`、`"no-comparison"`、`"interactive-crop"`、`"interactive-eraser"`、`"no-dropzone"`。
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### 3. i18n 条目 {#_3-i18n-entry}
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添加到 `packages/shared/src/i18n/en.ts`：
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```ts
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"my-tool": {
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name: "My Tool",
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description: "Short description of what this tool does",
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},
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```
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### 4. 测试 {#_4-tests}
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为你的操作按钮添加一个 `data-testid` 属性（如上所示），以便 e2e 测试能可靠地定位它。
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## Docker 构建 {#docker-builds}
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在本地构建完整的生产镜像：
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```bash
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docker build -f docker/Dockerfile -t snapotter:latest .
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```
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使用 BuildKit 缓存挂载以加快重新构建：
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```bash
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DOCKER_BUILDKIT=1 docker build -f docker/Dockerfile -t snapotter:latest .
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```
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## 环境变量 {#environment-variables}
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完整列表请参见 [配置指南](/zh-CN/guide/configuration)。开发中的关键项：
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| 变量 | 默认值 | 描述 |
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|-----------------------------|-----------|------------------------------------------------|
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| `AUTH_ENABLED` | `true` | 启用/禁用身份验证 |
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| `DEFAULT_USERNAME` | `admin` | 默认管理员用户名 |
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| `DEFAULT_PASSWORD` | `admin` | 默认管理员密码 |
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| `SKIP_MUST_CHANGE_PASSWORD` | `false` | 跳过强制修改密码（仅限 CI/开发） |
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| `RATE_LIMIT_PER_MIN` | `1000` | 每分钟 API 速率限制（0 = 禁用） |
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| `MAX_UPLOAD_SIZE_MB` | `100` | 最大上传大小（MB）（0 = 无限制） |
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