Workers Builds check fails opaquely on tray-only PRs

[rschumann]

PR #11 hit an opaque external check failure:

• Check: Workers Builds: tytus-cli
• Details URL: Cloudflare dashboard build page, no annotations surfaced in GitHub CLI
• PR: feat(tray): serve TytusOS from tray #11

Observed during PR #11:

• PR does not modify web/** or wrangler.jsonc.
• Local Worker dry run passes:
  npx --yes wrangler@latest deploy --dry-run --config wrangler.jsonc
• Dry run reads only web/ assets, not tray/web/os vendored TytusOS assets.

Task:

1. Check the Cloudflare build logs and identify why the Worker check failed.
2. If this check is unrelated to tray/TytusOS packaging, detach it from tray-only PR required checks or document when it may be ignored.
3. If it is supposed to validate tray packaging, move that logic into GitHub CI with visible logs/annotations.

Rationale: merging past an opaque red external check should not become normal without traceability.