Create an HTML-first video or image project

{  "success": true,  "data": {    "id": "project_01J",    "name": "Launch artwork",    "description": "Editable social campaign",    "compositionKind": "image",    "width": 1080,    "height": 1080,    "fps": 1,    "duration": 1,    "status": "ready",    "createdAt": "2026-08-25T09:00:00.000Z",    "updatedAt": "2026-08-25T09:05:00.000Z",    "thumbnail": "https://api.jsoncut.com/media/project_01J/thumbnail",    "tags": [      "launch"    ],    "folder": "Campaigns",    "version": 3,    "source": {      "format": "jsoncut-html",      "version": 1,      "id": "project_01J",      "name": "Launch artwork",      "compositionKind": "image",      "canvasBackground": "transparent",      "width": 1080,      "height": 1080,      "fps": 1,      "duration": 1,      "html": "<div id=\"title\" data-jc-clip data-jc-kind=\"text\" data-jc-name=\"Title\" data-jc-start=\"0\" data-jc-duration=\"1\" data-jc-track=\"0\" data-jc-bind-text=\"title\" style=\"left:120px;top:460px;width:840px;height:160px;color:#fff;font:800 72px/1.1 Inter,sans-serif;text-align:center\">Launch faster</div>",      "css": "#jsoncut-canvas{background:linear-gradient(135deg,#111827,#FF9418)}",      "variables": [        {          "id": "title",          "label": "Title",          "type": "string",          "default": "Launch faster"        }      ],      "values": {        "title": "Launch faster"      },      "customBlocks": []    }  }}