Add comprehensive documentation for MasterHttpRelayVPN

- Introduced ARCHITECTURE.md to outline the system architecture and flow.
- Created CONFIGURATION.md detailing configuration options and their meanings.
- Added DOCKER.md for Docker setup instructions and usage.
- Developed GETTING_STARTED.md to guide users through initial setup and usage.
- Included LAN_SHARING.md to explain how to enable LAN sharing for the proxy.
- Established SECURITY.md to highlight security practices and responsibilities.
- Compiled TROUBLESHOOTING.md to assist users in resolving common issues.
- Translated documentation into Persian, including ARCHITECTURE.md and CONFIGURATION.md.

docs/DOCKER.md

@@ -0,0 +1,69 @@
+# Docker Guide
+
+Use Docker when you want the proxy isolated from your system Python environment.
+
+## Requirements
+
+- Docker
+- Docker Compose
+- A completed `config.json`
+
+## Setup
+
+Create `config.json` first:
+
+```bash
+cp config.example.json config.json
+```
+
+Edit `config.json` and set at least:
+
+```json
+{
+  "script_id": "YOUR_APPS_SCRIPT_DEPLOYMENT_ID",
+  "auth_key": "THE_SAME_SECRET_AS_CODE_GS"
+}
+```
+
+Then start the container:
+
+```bash
+docker compose up -d
+```
+
+The compose file exposes:
+
+| Port | Use |
+|------|-----|
+| `8085` | HTTP proxy |
+| `1080` | SOCKS5 proxy |
+
+Configure your browser to use HTTP proxy `127.0.0.1:8085`.
+
+## Useful Commands
+
+```bash
+docker compose up -d          # Start in background
+docker compose logs -f        # Follow logs
+docker compose restart        # Restart after config changes
+docker compose down           # Stop and remove container
+docker compose build          # Rebuild after code changes
+```
+
+## Certificate Handling
+
+The container writes the generated CA into `./ca` on your host because [docker-compose.yml](../docker-compose.yml) mounts that directory.
+
+Install this file on the host, not inside the container:
+
+```text
+ca/ca.crt
+```
+
+Running `python main.py --install-cert` inside the container cannot update your host OS or browser trust store.
+
+## Config And Secrets
+
+[docker-compose.yml](../docker-compose.yml) mounts `config.json` read-only into the container. Your secrets stay on the host and are not baked into the image.
+
+Do not commit or share your real `config.json`, `auth_key`, `ca/`, or exit-node PSK.