# Posts title fields for list/card surfaces

Front-end list/card surfaces such as **热门资料**, **官方推荐**, and **全部资料** should display a short title, not the full Telegram/body text.

## Affected endpoints

Any endpoint returning `Post` items should include a short title when available:

- `GET /api/posts`
- `GET /api/posts/search`
- `GET /api/posts/recommended`
- `GET /api/posts/:id`

## Recommended response shape

```jsonc
{
  "id": "string",
  "title": "ARK 2026 共识加速计划", // optional global fallback title
  "text": "完整正文 / Telegram-style body text...",
  "localizations": {
    "zh": {
      "title": "ARK 2026 共识加速计划",
      "text": "完整中文正文...",
    },
    "en": {
      "title": "ARK 2026 Consensus Acceleration Plan",
      "text": "Full English body...",
    },
  },
}
```

## Front-end fallback order

For `Resource.title`, front-end reads:

1. `localizations[currentLang].title`
2. `post.title`
3. first non-empty line of localized/full `text`
4. first attachment filename
5. `post.id`

So backend can roll this out gradually: old posts without `title` still render, but long body text will be reduced to its first line.

## Requirement

Do **not** put an entire body paragraph into `title`. `title` should be concise enough for a two-line card/list title.

Examples:

| Good title                           | Bad title                                                 |
| ------------------------------------ | --------------------------------------------------------- |
| `ARK 2026「共识加速计划」邀请王霸榜` | Full event body with links, schedule, rules, and hashtags |
| `ARK 主网核心合约地址（BSC链）`      | Full contract explainer paragraph                         |
| `ARK灵魂五问完整视频`                | Full video caption text                                   |