Add dynamic footer badge marquee with admin management.

Store badges in Postgres, expose public/admin APIs, render an infinite footer slider, and ship /admin for paste-embed CRUD.

.env.example

@@ -13,6 +13,10 @@ UPLOAD_DIR="./uploads"
 # S2VID_EDITION="selfhosted"
 # Admin API key for approving/rejecting quota extension requests (Bearer token)
 # ADMIN_API_KEY="your-secret-admin-key"
+# Admin UI: /admin (footer badges) — unlock with the same Bearer key
+# Admin reset: POST /api/admin/reset-credits  Authorization: Bearer $ADMIN_API_KEY
+# Admin badges: GET/POST /api/admin/badges, PATCH/DELETE /api/admin/badges/:id
+# Public badges: GET /api/badges
 # Pro users generate API keys in Dashboard → Settings (stored hashed; shown once)
 # Optional: override bundled ffmpeg-static binary (leave unset to use npm package)
 # FFMPEG_PATH="C:/path/to/ffmpeg.exe"
@@ -44,3 +48,4 @@ NEXT_PUBLIC_DOCKER_HUB_URL="https://hub.docker.com/r/atakanozban/songs2vid"
 # Optional: Managed Payments (MoR)  enable in Dashboard + set managed_payments on Checkout if you use it
 # Dev helpers: POST /api/dev/grant-credits  { "action": "set-pro" | "free-top-up" | "grant-credits" }
 # Admin reset: POST /api/admin/reset-credits  Authorization: Bearer $ADMIN_API_KEY
+# See also /admin for footer badge management