feat: Caddy 监听端口可配置 — CADDY_HTTP_PORT/CADDY_HTTPS_PORT

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.docker.env.example

@@ -45,7 +45,11 @@ ENABLE_BACKGROUND_THINKING=true
 # ========== Webhook（可选） ==========
 WEBHOOK_API_KEY=
 
+# ========== 反向代理端口（避免与已有 nginx 等服务冲突） ==========
+CADDY_HTTP_PORT=80
+CADDY_HTTPS_PORT=443
+
 # ========== 域名与 HTTPS（有域名时填写） ==========
-# 留空 = 仅 HTTP (:80)；填写域名后 Caddy 自动申请 Let's Encrypt 证书
+# 留空 = 仅 HTTP；填写域名后 Caddy 自动申请 Let's Encrypt 证书
 DOMAIN=
 ACME_EMAIL=admin@example.com

docker-compose.yml

@@ -17,8 +17,8 @@ services:
     container_name: cyrene_caddy
     image: caddy:2-alpine
     ports:
-      - "80:80"
-      - "443:443"
+      - "${CADDY_HTTP_PORT:-80}:80"
+      - "${CADDY_HTTPS_PORT:-443}:443"
     environment:
       DOMAIN: ${DOMAIN:-}
       ACME_EMAIL: ${ACME_EMAIL:-admin@localhost}