Preview unavailable Not started

No dev server is running on port 8080 and no static files were found in /workspace.
How to fix
Dev server log /tmp/dev-server.log
127.0.0.1 - - [23/May/2026 16:25:19] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:25:29] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:25:39] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:25:49] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:25:59] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:26:09] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:26:20] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:26:30] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:26:40] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:26:50] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:27:00] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:27:10] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:27:20] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:27:30] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:27:40] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:27:50] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:28:00] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:28:10] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:28:20] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:28:30] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:28:40] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:28:50] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:29:00] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:29:10] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:29:20] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:29:30] "GET /api/v1/health HTTP/1.1" 200 -
127.0.0.1 - - [23/May/2026 16:29:38] code 404, message File not found
127.0.0.1 - - [23/May/2026 16:29:38] "GET /robots.txt HTTP/1.1" 404 -
127.0.0.1 - - [23/May/2026 16:29:38] code 404, message File not found
127.0.0.1 - - [23/May/2026 16:29:38] "GET /sitemap.xml HTTP/1.1" 404 -