The compose file was using PHOTOPRISM_OIDC_ISSUER_URL / _CLIENT_ID /
_CLIENT_SECRET / _PROVIDER_NAME / _REDIRECT_URI, but PhotoPrism's CLI
flags are --oidc-uri / --oidc-client / --oidc-secret / --oidc-provider —
so the env vars it parses are PHOTOPRISM_OIDC_URI / _CLIENT / _SECRET /
_PROVIDER. With the old names PhotoPrism silently ignored them, OIDC
stayed dormant, and `photoprism show config` reported blank oidc-uri /
oidc-client even though everything else looked configured.
Confirmed on the M0 LXC: renaming the env vars makes the Authentik
"Sign in" button appear on /library/login, /api/v1/oidc/login emits a
proper 302 to the IdP authorize endpoint, and the callback creates the
OIDC user + session in the DB.
The user-facing `.env.photoprism` keys are unchanged (OIDC_PROVIDER_NAME,
OIDC_ISSUER_URL, OIDC_CLIENT_ID, OIDC_CLIENT_SECRET); the compose file
just maps them to the correct PHOTOPRISM_* targets. OIDC_REDIRECT_URI
is removed because PhotoPrism derives the redirect from PHOTOPRISM_SITE_URL.
Replace the legacy mule-image backend with PhotoPrism plus a thin
SvelteKit client and a Node sidecar for endpoints PhotoPrism doesn't
expose (file rename), and add a two-phase migrator (metadata via PUT,
heaps → albums) for the existing Postgres library.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
