## Problem
JWT validation failing with `error decoding response body: expected value at line 6 column 1`.
Root cause: `AUTHENTIK_ISSUER` pointed to slug `poimen-memory` which returns 404 on OIDC discovery. Slug was renamed to `poimen` in Authentik.
Secondary issue: auth env vars were set via `kubectl set env` (not in git), so every ArgoCD sync reverted them.
## Changes
- **k8s/app/config.yaml** — ConfigMap for non-sensitive env (auth mode, rate limits, OpenSearch/Obsidian URLs)
- **k8s/app/auth.enc.yaml** — SOPS-encrypted Secret with `AUTHENTIK_ISSUER`, `AUTHENTIK_AUDIENCE`, `JWT_CACHE_TTL_SECS`
- **k8s/app/secret-generator.yaml** — KSOPS generator for ArgoCD decryption
- **k8s/app/deployment.yaml** — `envFrom` referencing ConfigMap + Secret
- **k8s/app/kustomization.yaml** — Added config.yaml + KSOPS generator
- **k8s/app/opensearch-deployment.yaml** — Updated JWKS/issuer URLs to `poimen` slug
## Rollout
Reloader (`--auto-reload-all=true`) triggers rolling restart when ConfigMap/Secret change. Merge and ArgoCD sync handles everything.Reviewed-on: rock/poimen-memory#40
Co-authored-by: rock <[email protected]>
