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

.dockerignore

@@ -0,0 +1,52 @@
+# Rust
+/target
+Cargo.lock
+**/*.rs.bk
+
+# Node.js
+node_modules/
+dist/
+dist-ssr/
+*.local
+
+# Environment files
+.env
+.env.local
+.env.*.local
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Git
+.git/
+.gitignore
+
+# Docker
+.dockerignore
+Dockerfile*
+docker-compose*.yml
+.devcontainer/
+
+# Logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# Testing
+coverage/
+.nyc_output/
+
+# Temporary files
+tmp/
+temp/
+*.tmp