feat(gatekeeper): major UI upgrade - high-fidelity light theme, iridescent mouse-reactive form, and enhanced background animation

docker-compose.gatekeeper.yml

@@ -0,0 +1,39 @@
+services:
+  gatekeeper-proxy:
+    image: alpine:latest
+    command: sleep infinity
+    restart: unless-stopped
+    networks:
+      - infra
+    labels:
+      - "caddy=http://gatekeeper.localhost"
+      - "caddy.route=/*"
+      - "caddy.route.0_redir=/ /gatekeeper/login 302"
+      - "caddy.route.1_reverse_proxy=gatekeeper-app:3000"
+
+  gatekeeper-app:
+    image: node:20-alpine
+    working_dir: /app
+    volumes:
+      - .:/app
+      - gatekeeper_root_node_modules:/app/node_modules
+      - gatekeeper_pkg_node_modules:/app/packages/gatekeeper/node_modules
+      - gatekeeper_next_cache:/app/packages/gatekeeper/.next
+      - gatekeeper_pnpm_store:/pnpm
+    environment:
+      - NODE_ENV=development
+      - NPM_TOKEN=${NPM_TOKEN:-}
+    networks:
+      - infra
+    command: >
+      sh -c "corepack enable && pnpm config set store-dir /pnpm && pnpm install --no-frozen-lockfile && pnpm --filter @mintel/gatekeeper run dev --hostname 0.0.0.0 --port 3000"
+
+networks:
+  infra:
+    external: true
+
+volumes:
+  gatekeeper_root_node_modules:
+  gatekeeper_pkg_node_modules:
+  gatekeeper_next_cache:
+  gatekeeper_pnpm_store: