Add support enabling the stt services by env var, default deepgram nova-2

[beastoin]

what's included ?

• enable/disable stt services via env var, supports: soniox-stt-rt,dg-nova-3,dg-nova-2, default: dg-nova-2

deploy plan.

• add new env var to backend-listen, STT_SERVICE_MODELS

  # STT Services: soniox-stt-rt,dg-nova-3,dg-nova-2
  STT_SERVICE_MODELS=dg-nova-3,dg-nova-2
  

• deploy backend-listen

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
omi	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 7, 2025 3:45am

[beastoin]

update secrets(env vars) to gke

1. create new var env in https://console.cloud.google.com/security/secret-manager?project=based-hardware

2. update helm secrets, and backend-listen values

• backend/charts/backend-listen/prod_omi_backend_listen_values.yaml
• backend/charts/backend-secrets/prod_omi_backend_secrets_values.yaml

3. helm updates

• $ helm -n prod-omi-backend upgrade -i prod-omi-backend-secrets ./backend-secrets -f ./backend-secrets/prod_omi_backend_secrets_values.yaml
• $ helm -n prod-omi-backend upgrade -i prod-omi-backend-listen ./backend-listen -f ./backend-listen/prod_omi_backend_listen_values.yaml

notes:

• manually trigger a refresh for secret: $ kubectl -n prod-omi-backend annotate externalsecret prod-omi-backend-secrets force-refresh=$(date +%s) --overwrite