Add nginx reverse proxy with Let's Encrypt SSL

- nginx as reverse proxy for dawarich frontend
- Let's Encrypt certificate support with automatic renewal
- HTTP to HTTPS redirect, gzip compression
- Bootstrap config for initial certificate request

Co-authored-by: Cursor <cursoragent@cursor.com>

nginx/Dockerfile

@@ -0,0 +1,7 @@
+FROM nginx:alpine
+RUN apk add --no-cache certbot
+COPY nginx.conf /etc/nginx/templates/nginx.conf
+COPY nginx-bootstrap.conf /etc/nginx/templates/nginx-bootstrap.conf
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]