# Meridian — как устроен (черновик)

## Overview

```
┌──────────┐    ┌──────────┐    ┌──────────────┐
│  Editor  │───▶│  API GW  │───▶│  Content DB  │
│  (React) │    │          │    │  (PostgreSQL)│
└──────────┘    └────┬─────┘    └──────────────┘
                     │
                     ▼
              ┌──────────────┐
              ┌──────────────┐
              │ CaelixFlow   │
              │ (media files)│
              └──────────────┘
```

## Services

| Service | Tech | Port |
|---------|------|------|
| editor-ui | React 19 | 3000 |
| content-api | Go 1.22 | 8080 |
| workflow-engine | Temporal | — |
| media-proxy | Node.js | 8081 |

## Content model

```json
{
  "id": "page_abc",
  "slug": "/about",
  "title": "About Us",
  "blocks": [
    {"type": "heading", "level": 1, "text": "About Us"},
    {"type": "paragraph", "text": "..."},
    {"type": "image", "src": "https://cdn.caelixflow.com/media/hero.jpg"}
  ],
  "status": "published",
  "locale": "en"
}
```

## Workflow states

```
draft → review → approved → published → archived
         ↓
      rejected → draft
```

## Caching

- Published pages: CDN, TTL 1 hour
- Draft pages: no cache
- Media: CDN, TTL 24 hours