chore: bump model-engine image tag to 4de8ad99

[lilyz-ai]

Summary

• Bumps values_sample.yaml image tag to 4de8ad9966ea6a6f0e438aa83171d921df37e704 (latest main)
• Image published to both internal and public ECR

Test plan

• Image successfully pushed to 692474966980.dkr.ecr.us-west-2.amazonaws.com/model-engine:4de8ad9966ea6a6f0e438aa83171d921df37e704
• Image successfully pushed to public.ecr.aws/b2z8n5q1/model-engine:4de8ad9966ea6a6f0e438aa83171d921df37e704

🤖 Generated with Claude Code

Greptile Summary

Bumps the model-engine Docker image tag in values_sample.yaml from 60ac144c55aad971cdd7f152f4f7816ce2fb7d2f to 4de8ad9966ea6a6f0e438aa83171d921df37e704, which corresponds to the latest main commit (fix(gcp): use redis backend and guard AWS-only Secrets Manager call (#788)). This tag is referenced by multiple Helm templates (gateway, builder, cacher, forwarder deployments and init jobs) and will update all of them to the new image.

• Single-line change updating the tag field in values_sample.yaml
• New tag matches a verified commit on main
• No new configuration flags, labels, or metrics added

Confidence Score: 5/5

This PR is safe to merge — it is a minimal, single-line image tag bump with no logic or configuration changes.

The change updates only the Docker image tag to a verified commit SHA on main. No new flags, labels, or configuration are introduced. The risk is limited to the correctness of the referenced image, which is covered by the test plan.

No files require special attention.

Important Files Changed

Filename	Overview
charts/model-engine/values_sample.yaml	Single-line image tag bump from 60ac144c to 4de8ad99. No structural or configuration changes.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A["values_sample.yaml\ntag: 4de8ad99..."] --> B["gateway_deployment.yaml"]
    A --> C["endpoint_builder_deployment.yaml"]
    A --> D["cacher_deployment.yaml"]
    A --> E["spellbook_init_job.yaml"]
    A --> F["service_template_config_map.yaml"]
    A --> G["database_migration_job.yaml"]
    B --> H["model-engine:4de8ad99..."]
    C --> H
    D --> H
    E --> H
    F --> H
    G --> H

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