Add remote development support with Docker Nginx configuration

- Introduce a new `nginx-remote-dev` service in `docker-compose.yaml` for remote development environments, allowing Nginx to proxy requests to the host machine's frontend and backend services.
- Create a new Nginx configuration file `ai-video.remote-dev.conf` tailored for remote setups, ensuring proper handling of WebSocket and API requests.
- Update `README.md` to include detailed instructions for setting up remote development with Nginx, including certificate generation and service initialization.
- Enhance the `setup-certs.sh` script to support additional hostnames for certificate signing, improving flexibility for remote access.
- Revise documentation to clarify the development paths and requirements for local and remote environments.

deploy/setup-certs.sh

@@ -1,11 +1,13 @@
 #!/usr/bin/env bash
-# 用 mkcert 生成本地受信任 TLS 证书,供 deploy/nginx/ai-video.dev.conf 使用。
+# 用 mkcert 生成本地受信任 TLS 证书,供开发 nginx 配置使用。
 #
 # mkcert 会建一个"本地 CA"并装进系统/浏览器信任库,之后它签的证书在本机零警告。
 # 局域网里其它设备(手机/别的电脑)要免警告,需把这个 CA 根证书也装到那台设备上
 # (见末尾提示)。
 #
-# 用法:  ./deploy/setup-certs.sh
+# 用法:
+#   ./deploy/setup-certs.sh
+#   ./deploy/setup-certs.sh 192.168.1.20 dev.example.com
 set -euo pipefail
 
 CERT_DIR="$(cd "$(dirname "$0")" && pwd)/certs"
@@ -23,7 +25,12 @@ echo "▶ 安装/确认本地 CA(mkcert -install)…"
 mkcert -install
 
 # 3) 探测本机局域网 IP(其它设备靠这个 IP 访问)
-LAN_IP="$(ipconfig getifaddr en0 2>/dev/null || ipconfig getifaddr en1 2>/dev/null || true)"
+LAN_IP="$(
+  ipconfig getifaddr en0 2>/dev/null \
+  || ipconfig getifaddr en1 2>/dev/null \
+  || hostname -I 2>/dev/null | awk '{print $1}' \
+  || true
+)"
 if [ -z "$LAN_IP" ]; then
   echo "⚠ 没探测到局域网 IP(en0/en1),证书将只覆盖 localhost。"
   echo "  如需 LAN 访问,手动重跑:mkcert ... <你的IP>"
@@ -32,6 +39,9 @@ fi
 # 4) 签证书:覆盖 localhost / 回环 / 局域网 IP / 一个好记的本地域名
 HOSTS=(localhost 127.0.0.1 ::1 ai-video.local)
 [ -n "$LAN_IP" ] && HOSTS+=("$LAN_IP")
+for extra_host in "$@"; do
+  [ -n "$extra_host" ] && HOSTS+=("$extra_host")
+done
 
 echo "▶ 为以下名字签发证书:${HOSTS[*]}"
 mkcert -cert-file "$CERT_DIR/ai-video.pem" \