fix(oidc): disable devInteractions so custom interactions.url runs in dev

oidc-provider's devInteractions is a quick-start scaffold that, when
enabled, mutates configuration.url to its own urlFor('interaction')
helper — emitting /interaction/UID instead of our /oidc/interaction/UID.
That made /oidc/auth redirect to a 404 in local dev and forced a stale
TODO entry. We already have our own interaction handler at
server/routes/oidc/interaction/[uid].get.ts, so devInteractions is
unnecessary; disabling it makes dev match prod and clears the
oidc-provider warning "your configuration is not in effect".

server/utils/oidc-provider.ts

@@ -86,9 +86,7 @@ export async function getOidcProvider() {
     },
 
     features: {
-      devInteractions: {
+      devInteractions: { enabled: false },
-        enabled: process.env.NODE_ENV !== "production",
-      },
       revocation: { enabled: true },
       rpInitiatedLogout: {
         enabled: true,