- Introduce preflight handling for `OPTIONS` method on `api.truckwash.io` with high priority routing and secure headers middleware.
- Extend CORS configuration to include `https://api.truckwash.io`.
- Add preflight routers and attach `secure-headers` middleware in Traefik for `api.truckwash.dk` and `cloud.truckwash.dk`.
- Update `secure-headers` middleware with refined CORS headers and stricter origin/method/header configurations.
- Remove redundant CORS logic in Caddy, delegating CORS management entirely to Traefik.
- Add origin-specific CORS settings to Traefik for `truckwash.io` with credentials support.
- Simplify and standardize CORS headers in Caddy, removing upstream duplication and adjusting preflight logic.