Add retirement dates

[harshiv-26]

FE uses isDeprecated flag for 'FIX NOW', keeping status deprecated is fine

---

Note

Low Risk
Schema and metadata-only changes to model catalog YAML and generated types; no runtime auth or API behavior in this diff.

Overview
Introduces optional retirementDate (YYYY-MM-DD) on model configs in the Cue schema and generated TypeScript types, alongside small clarifications to #Status comments for deprecated vs retired.

Two AWS Bedrock models are updated to use status: deprecated, concrete retirement dates, and model-card sources instead of isDeprecated on the YAML entries. The Llama 3.1 405B entry also sets mode: chat (was unknown) and drops the deprecated flag from regional costs.

Bedrock provider documentation gains a link to AWS model cards.

^{Reviewed by Cursor Bugbot for commit f3af667. Bugbot is set up for automated code reviews on this repo. Configure here.}

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit f3af667. Configure here.}

[cursor]

Removed isDeprecated breaks FE

Medium Severity

This change drops isDeprecated from the Bedrock model YAML while the PR notes the frontend still uses that flag for “FIX NOW”. build-unified-json passes fields through unchanged, so dist/ai-models.json no longer exposes isDeprecated for these entries even though status is deprecated.

Additional Locations (1)

• providers/aws-bedrock/meta.llama3-1-405b-instruct-v1:0.yaml#L2-L3

 

^{Reviewed by Cursor Bugbot for commit f3af667. Configure here.}