fix(error): align Go bindings with Error Specification ADR

[yordis]

• Keeps the Go module aligned with the latest published trogon-proto error contract.
• Prevents downstream Go consumers from compiling against stale visibility constants.
• Keeps generated metadata comments consistent with the shared Google RPC projection.

[coderabbitai]

Important

Review skipped

Review was skipped due to path filters

⛔ Files ignored due to path filters (3)

• gen/trogon/consistency/v1alpha1/consistency.pb.go is excluded by !**/*.pb.go, !**/gen/**
• gen/trogon/error/v1alpha1/options.pb.go is excluded by !**/*.pb.go, !**/gen/**
• gen/trogon/error/v1alpha1/visibility.pb.go is excluded by !**/*.pb.go, !**/gen/**

CodeRabbit blocks several paths by default. You can override this behavior by explicitly including those paths in the path filters. For example, including **/dist/** will override the default block on the dist directory, by removing the pattern from both the lists.

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 1c4c5cde-46fb-4c45-b94c-1e3bb877f572

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch yordis/fix-align-error-bindings

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}