feat(gitea): accept an optional port in the instance hostname

[fidarit]

📝 Provide a description of the new feature

Self-hosted Gitea/Forgejo is often on a non-443 port (git.example.com:3000, Docker default). Gitify cannot target that listener.

Hostname validation is DNS-only. host:port fails with Hostname format is invalid:

// src/renderer/utils/auth/utils.ts
export function isValidHostname(hostname: Hostname) {
  return /^([A-Z0-9]([A-Z0-9-]{0,61}[A-Z0-9])?\.)+[A-Z]{2,6}$/i.test(hostname);
}

The Gitea client then always builds a URL without a port:

// src/renderer/utils/forges/gitea/client.ts
export function getGiteaApiBaseUrl(hostname: Hostname): URL {
  if (!isValidHostname(hostname)) {
    throw new Error('Refusing to build a Gitea API URL for invalid hostname.');
  }
  return new URL(`https://${hostname}/api/v1/`);
}

FAQ already says self-hosted Gitea is supported and that the hostname should match the instance URL. In practice only host.tld on HTTPS/443 works.

Please allow an optional port on the existing hostname field, still HTTPS:

• gitea.example.com → https://gitea.example.com/api/v1/
• gitea.example.com:3000 → https://gitea.example.com:3000/api/v1/

giteaGetJson should compare parsed.host (name + port) against that origin. Other forges unchanged.

Relevant Forge(s)

Gitea / Forgejo / Codeberg

➕ Additional Information

happy to send a PR