Failed to create LLM proxy from YAML error when Deploy from Platform API

Description

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Gateway Controller Logs

gateway-controller-1  | time=2026-02-16T07:31:42.737Z level=INFO source=/build/pkg/controlplane/client.go:551 msg="Received WebSocket event" type=llmproxy.deployed payload="{\"type\":\"llmproxy.deployed\",\"payload\":{\"proxyId\":\"open-ai\",\"deploymentId\":\"e15bc39e-3651-484e-a9f6-5c4b47935279\",\"vhost\":\"\",\"environment\":\"production\"},\"timestamp\":\"2026-02-16T07:31:42Z\",\"correlationId\":\"bb566c19-a4f4-49c8-b6ee-c02b9ec7c6ec\"}"
gateway-controller-1  | time=2026-02-16T07:31:42.738Z level=INFO source=/build/pkg/controlplane/client.go:1189 msg="LLM Proxy Deployment Event" payload="map[deploymentId:e15bc39e-3651-484e-a9f6-5c4b47935279 environment:production proxyId:open-ai vhost:]" timestamp=2026-02-16T07:31:42Z correlationId=bb566c19-a4f4-49c8-b6ee-c02b9ec7c6ec
gateway-controller-1  | time=2026-02-16T07:31:42.739Z level=INFO source=/build/pkg/controlplane/client.go:1218 msg="Processing LLM proxy deployment" proxy_id=open-ai environment=production deployment_id=e15bc39e-3651-484e-a9f6-5c4b47935279 vhost="" correlation_id=bb566c19-a4f4-49c8-b6ee-c02b9ec7c6ec
gateway-controller-1  | time=2026-02-16T07:31:42.739Z level=INFO source=/build/pkg/utils/api_utils.go:184 msg="Fetching LLM proxy definition" proxy_id=open-ai url=https://platform-api.preview-dv.choreo.dev/api/internal/v1/llm-proxies/open-ai
gateway-controller-1  | time=2026-02-16T07:31:43.551Z level=INFO source=/build/pkg/utils/api_utils.go:228 msg="Successfully fetched LLM proxy definition" proxy_id=open-ai size_bytes=342
gateway-controller-1  | time=2026-02-16T07:31:43.551Z level=INFO source=/build/pkg/utils/api_utils.go:248 msg="Found YAML file in zip" filename=llm-proxy-open-ai.yaml
gateway-controller-1  | time=2026-02-16T07:31:43.554Z level=ERROR source=/build/pkg/controlplane/client.go:1257 msg="Failed to create LLM proxy from YAML" proxy_id=open-ai error="failed to deploy LLM proxy configuration from YAML: failed to transform LLM proxy to API configuration: provider.auth.value is required"

Start in pkg/controlplane/client.go at the LLM proxy deployment handling, then follow the YAML fetch and transformation flow through pkg/utils/api_utils.go. Use llm-proxy-open-ai.yaml and the logged provider.auth.value error to reproduce the deployment failure. Done means deploying the proxy from the Platform API no longer fails at YAML transformation.