feat: add caddy config

caddy/.env.example

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+CLOUDFLARE_API_TOKEN=

caddy/.gitignore

@@ -0,0 +1,2 @@
+Caddyfile
+.env

caddy/Caddyfile.example

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+{
+	admin off
+	# acme_dns cloudflare {env.CLOUDFLARE_API_TOKEN}
+
+	log {
+		format console
+	}
+
+	servers {
+		trusted_proxies cloudflare
+		client_ip_headers Cf-Connecting-Ip
+	}
+}
+
+<DOMAIN> {
+	@backend path /api/* /mcp/*
+	handle @backend {
+		reverse_proxy beavergram-api:8080
+	}
+
+	handle {
+		root * /srv
+		try_files {path} /index.html
+		file_server
+	}
+}
+
+dev.<DOMAIN> {
+	reverse_proxy beavergram-frontend:5173
+}

caddy/docker-compose.yml

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+services:
+  caddy:
+    image: ghcr.io/caddybuilds/caddy-cloudflare:latest
+    restart: unless-stopped
+    ports:
+      - "0.0.0.0:80:80"
+      - "0.0.0.0:443:443"
+      - "0.0.0.0:443:443/udp"
+    networks:
+      - caddy
+    volumes:
+      - ./Caddyfile:/etc/caddy/Caddyfile
+      - ../frontend/build:/srv:ro
+      - caddy_data:/data
+    env_file:
+      - .env
+
+networks:
+  caddy:
+    external: true
+
+volumes:
+  caddy_data: