Document env vars and remove theme collapse button

- Expand .env.example with full runtime, cache, Docker, and AI keys
- Add deployment secrets to .gitignore (docker-compose/.env,
  docker/.registry.env)
- Remove VIMEO_ACCESS_TOKEN from compose files; add OAuth redirect URIs
- Load registry credentials from .registry.env in deploy-img.sh
- Fail fast if protected registry lacks auth during pre-checks
- Pass DOCKER_USERNAME/PASSWORD explicitly to WSL in deploy-img.ps1
- Remove inline collapse buttons from themes-nav.component.html

docker-compose/.env

@@ -1,16 +1,16 @@
-NGINX_HOSTNAME=AsusVivobook
-NGINX_SERVER_IP=172.26.11.25
+NGINX_HOSTNAME=newtube-angular
 DIR_NEWTUBE=/DOCKER_CONFIG/newtube-angular
 GEMINI_API_KEY=AIzaSyALfJiYQb6QYUXyUM2AKd7sV1nWV0JALJw
 YOUTUBE_API_KEY=AIzaSyBXL5y8bRMO5WJwIhPK-fhrEPu2aROuKag
 YOUTUBE_API_KEYS=["AIzaSyBXL5y8bRMO5WJwIhPK-fhrEPu2aROuKag", "AIzaSyC1rV2Er1n1FHZQoGgQhOxFc3nSlQWhgks", "AIzaSyBZxgB2s1kp9qZhfGRrp69Mdf_9krwppVI"]
-VIMEO_ACCESS_TOKEN=40e09bf643b2ecddf68ed0f5d1574c72
 TWITCH_CLIENT_ID=ikxrqgjivwn4rurhjy2mcfkcq62y3m
 TWITCH_CLIENT_SECRET=kezgpj5vqrk96tu2x3ghmhwipg980p
 # Google OAuth (connexion + import abonnements/favoris YouTube)
 GOOGLE_CLIENT_ID=585708432771-in6nulj6mu0hus59m2huo7k6qsse78lq.apps.googleusercontent.com
 GOOGLE_CLIENT_SECRET=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
 OAUTH_APP_BASE_URL=http://localhost:4200
+TWITCH_REDIRECT_URI=http://localhost:4200/api/oauth/twitch/callback
+GOOGLE_REDIRECT_URI=http://localhost:4200/api/oauth/google/callback
 YT_CACHE_TTL_MS=1800000
 JWT_SECRET=Ceci-est-mon-programme-newtube-je-sais-que-c-est-moche
 ACCESS_TTL_MIN=15