Rename docker-compose.yaml to compose.yaml and pull prebuilt images

Use the images published by the new Gitea Actions workflow instead
of building locally, so deploys just pull the latest tag.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

compose.yaml

@@ -0,0 +1,43 @@
+services:
+  backend:
+    image: gitea.kzbikowski.pl/kzbkowski/whowhat/backend:latest
+    environment:
+      JWT_SECRET: ${JWT_SECRET:-please-change-this-secret-in-.env}
+      DATABASE_PATH: /app/data/app.db
+      PORT: 3000
+      FRONTEND_URL: ${FRONTEND_URL:-https://example.com}
+      SMTP_HOST: ${SMTP_HOST:-}
+      SMTP_PORT: ${SMTP_PORT:-587}
+      SMTP_SECURE: ${SMTP_SECURE:-false}
+      SMTP_USER: ${SMTP_USER:-}
+      SMTP_PASS: ${SMTP_PASS:-}
+      SMTP_FROM: ${SMTP_FROM:-}
+    volumes:
+      - ./sqlite:/app/data
+    networks:
+      - default
+    restart: unless-stopped
+
+  frontend:
+    image: gitea.kzbikowski.pl/kzbkowski/whowhat/frontend:latest
+    ports:
+      - "8856:80"
+    depends_on:
+      - backend
+    networks:
+      - default
+      - traefik_public
+    labels:
+      - traefik.enable=true
+      - traefik.docker.network=traefik_public
+      - traefik.http.routers.whowhat.rule=Host(`${DOMAIN:-example.com}`)
+      - traefik.http.routers.whowhat.entrypoints=websecure
+      - traefik.http.routers.whowhat.tls.certresolver=tls-resolver
+      - traefik.http.routers.whowhat.tls=true
+    restart: unless-stopped
+
+networks:
+  default:
+  traefik_public:
+    external: true
+    name: ${TRAEFIK_NETWORK:-traefik_public}