fix(spec2cdk): throw on unrecognized uppercase prefix in event pattern

[gasolima]

Issue # (if applicable)

Closes #.

Reason for this change

Previously, the function only logged a warning when encountering an event name that starts with an unknown uppercase prefix (e.g., a new service acronym). This made the issue easy to overlook and allowed inconsistent or incorrect pattern method names to be generated silently.

By throwing an error instead of logging, we enforce strict handling of event naming conventions. This ensures that any newly introduced event with a service/acronym prefix is explicitly reviewed and added to the prefixes list, preventing incorrect method name(e.g., kMSCMKDeletionPattern instead of kmsCMKDeletionPattern) generation and improving long-term maintainability.

Description of changes

• Replaced the console.log warning with a thrown error when an unrecognized uppercase prefix is detected in the event name.
• The function now fails fast if it encounters an event that appears to start with a service or feature acronym not included in the predefined prefixes list.
• This guarantees that:
  • All known service prefixes are explicitly defined.
  • Newly introduced events with acronyms are caught during development/testing rather than slipping into production.
• No changes to behavior for recognized prefixes or standard camelCase event names.

Describe any new or updated permissions being added

Description of how you validated changes

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

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• ✅ Entered queue — 2026-03-19 09:07 UTC · Rule: default-squash
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[leonmk-aws]

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Merge Queue Status

• ✅ Entered queue — 2026-03-19 09:20 UTC · Rule: default-squash
• 🚫 Left the queue — 2026-03-19 09:21 UTC · at 7c0ed5601599b7d432f005b62c51fa9a56ad7cd8

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Merge Queue Status

• ✅ Entered queue — 2026-03-19 09:53 UTC · Rule: default-squash
• ✅ Checks passed · in-place
• ✅ Merged — 2026-03-19 10:24 UTC · at 34ee2829a8c43b2bf71501becd12805e444052b0

This pull request spent 30 minutes 53 seconds in the queue, including 30 minutes 40 seconds running CI.

Required conditions to merge

• #approved-reviews-by >= 1 [🛡 GitHub branch protection]
  • fix(spec2cdk): throw on unrecognized uppercase prefix in event pattern #37283
• #changes-requested-reviews-by = 0 [🛡 GitHub branch protection]
  • fix(spec2cdk): throw on unrecognized uppercase prefix in event pattern #37283
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