# `POST /company/import`

Protected. Requires a valid session cookie (`credentials: 'include'`).

Import company catalog from zip archive (SSE)

Uploads a .zip archive containing company export data (categories, articles, pictures),
preserves archive contents under `data/import/<companyId>/`, and executes full catalog
import (categories hierarchy, articles upsert, variant linking, image processing).
Streams progress events via Server-Sent Events (`text/event-stream`).


## Body (`multipart/form-data`)

| Field | Required | Type | Description |
|-------|----------|------|-------------|
| `file` | no | file | ZIP archive (.zip) containing company data |

## Response `200`

Import progress stream (`text/event-stream`) or JSON result

```json
{
  "ok": true,
  "message": "Import erfolgreich abgeschlossen.",
  "stats": {}
}
```

## Errors

| Status | Description |
|--------|-------------|
| 400 | Bad request (missing file, not a zip, or no company selected) — `{"error":"…"}` |
| 401 | Unauthorized — `{"error":"…"}` |
| 500 | Server error — `{"error":"…"}` |

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