fix: add VITE_OIDC_REDIRECT_URI and build args for frontend

- Add VITE_OIDC_REDIRECT_URI to .env.example and docker-compose files
- Pass OIDC variables as build args in Dockerfile (build-time only)
- Update both docker-compose.prod.yml and docker-compose.traefik.yml
- Fixes undefined OIDC variables causing 404 on login redirect

apps/web/Dockerfile

@@ -1,5 +1,10 @@
 FROM node:22-alpine AS builder
 
+ARG VITE_API_URL
+ARG VITE_OIDC_ISSUER
+ARG VITE_OIDC_CLIENT_ID
+ARG VITE_OIDC_REDIRECT_URI
+
 WORKDIR /app
 COPY package.json ./
 RUN npm install -g pnpm@11.1.1 \