bug(ci): fix Kilo Code Review delivery failures

[BleedingDev]

Context

PR #482 became code-review clean and CI green, but the Kilo Code Review check failed with an external delivery error instead of actionable code feedback.

Observed on PR #482 / commit bdf33eb3499e1aec898dda257790933c0fb40a31:

• Check: Kilo Code Review
• App: kilo-code-bot
• Check run: 84309200774
• Check suite: 76826542051
• Result: failure
• Summary: Review failed: The message could not be delivered
• Annotations: 0

The check run and suite were re-requested through GitHub. GitHub returned 201 Created, but Kilo did not update the failed result.

Scope

• Inspect the Kilo app/webhook/configuration for this repository/org.
• Determine why review messages are not delivered.
• Restore Kilo so reruns produce either a successful review or actionable annotations.
• If Kilo should not block merges, adjust branch/check policy accordingly and document the decision.

Acceptance Criteria

• A new PR check run for Kilo no longer fails with The message could not be delivered, or the check is explicitly made non-blocking/disabled with a documented rationale.
• The fix is verified on an open PR.