Admin: add edit page (GET/POST), live preview; list shows Edit button; inject page title + watermark on public pages; clean header (only one logout); alignment via flex; add Dockerfile and docker-compose.yml; add gunicorn

docker-compose.yml

@@ -0,0 +1,19 @@
+version: "3.9"
+
+services:
+  web:
+    build: .
+    container_name: forme-web
+    ports:
+      - "5000:5000"
+    environment:
+      - SECRET_KEY=${SECRET_KEY:-prod-secret}
+      - ADMIN_USERNAME=${ADMIN_USERNAME:-ruslan}
+      - ADMIN_PASSWORD=${ADMIN_PASSWORD:-utOgbZ09ruslan}
+    volumes:
+      - appdb:/app/app.db
+    restart: unless-stopped
+
+volumes:
+  appdb: {}
+