feat: Initialize NxMesh project with Docker, Nginx, PostgreSQL, and Rust backend

- Add Docker Compose configuration for development environment
- Create Nginx configuration files for routing and health checks
- Set up PostgreSQL database with health checks
- Add .dockerignore and .gitignore files to exclude unnecessary files
- Initialize Cargo.toml and Cargo.lock for Rust dependencies
- Include GNU General Public License for project
- Add README.md for project description
- Create Justfile for development workflow commands

.devcontainer/docker-compose.yml

@@ -0,0 +1,69 @@
+version: '3.8'
+
+services:
+  # Development environment - Control Plane (Rust backend + Vite frontend)
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    volumes:
+      - ..:/workspace:cached
+      - /var/run/docker.sock:/var/run/docker.sock
+    environment:
+      - DATABASE_URL=postgres://postgres:postgres@postgres:5432/nxmesh
+      - RUST_LOG=debug
+      - RUST_BACKTRACE=1
+      - NODE_ENV=development
+    ports:
+      - "3000:3000" # Vite dev server
+      - "8080:8080" # Rust backend (Control Plane)
+    depends_on:
+      postgres:
+        condition: service_healthy
+    command: sleep infinity
+    networks:
+      - nxmesh-network
+    group_add:
+      - docker
+    pid: "service:nginx"
+
+  # Data Plane - Nginx (controlled by agent via Docker)
+  nginx:
+    image: nginx:alpine
+    container_name: nxmesh-nginx
+    restart: unless-stopped
+    volumes:
+      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
+      - ./nginx/conf.d:/etc/nginx/conf.d:ro
+    ports:
+      - "80:80"
+      - "443:443"
+    networks:
+      - nxmesh-network
+
+  # Database
+  postgres:
+    image: postgres:16-alpine
+    restart: unless-stopped
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: nxmesh
+    ports:
+      - "5432:5432"
+    healthcheck:
+      test: [ "CMD-SHELL", "pg_isready -U postgres" ]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+    networks:
+      - nxmesh-network
+
+volumes:
+  postgres-data:
+
+
+networks:
+  nxmesh-network: