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/nginx/ai-video.remote-dev.conf

@@ -0,0 +1,83 @@
+# AI Video Assistant —— 远程开发机用 nginx 反代
+#
+# 适用场景:
+#   nginx 跑在 Docker 容器里;
+#   Next dev 和 uvicorn 跑在 Docker 宿主机上。
+#
+# 容器内不能用 127.0.0.1 访问宿主机进程,所以这里使用 host.docker.internal。
+# 启动容器时需要加:
+#   --add-host=host.docker.internal:host-gateway
+# 或使用 docker-compose.yaml 里的 nginx-remote-dev profile。
+
+worker_processes 1;
+events { worker_connections 256; }
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+    sendfile      on;
+
+    upstream ui_upstream {
+        server host.docker.internal:3000;
+    }
+
+    upstream api_upstream {
+        server host.docker.internal:8000;
+    }
+
+    server {
+        listen 80;
+        server_name _;
+        return 301 https://$host$request_uri;
+    }
+
+    server {
+        listen 443 ssl;
+        server_name _;
+
+        ssl_certificate     /etc/nginx/certs/ai-video.pem;
+        ssl_certificate_key /etc/nginx/certs/ai-video-key.pem;
+        ssl_protocols TLSv1.2 TLSv1.3;
+        ssl_prefer_server_ciphers on;
+
+        location /ws/ {
+            proxy_pass http://api_upstream;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto https;
+            proxy_read_timeout 3600s;
+            proxy_send_timeout 3600s;
+            proxy_buffering off;
+        }
+
+        location /api/ {
+            proxy_pass http://api_upstream;
+            proxy_http_version 1.1;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto https;
+            client_max_body_size 50M;
+        }
+
+        location /health {
+            proxy_pass http://api_upstream;
+            proxy_set_header Host $host;
+        }
+
+        location / {
+            proxy_pass http://ui_upstream;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto https;
+        }
+    }
+}