Initial commit: simple file server

Add a new simple-file-server project. Includes Express server, auth and file routes, static client assets (public), and a db/connection module that uses MariaDB to log file actions and initialize a users table. Add Dockerfile and docker-compose.yml (exposes 3000 → 8080 and mounts ./uploads), .env.example, .gitignore, package.json and package-lock.json, and an uploads scaffold. This provides a ready-to-run app with container support and basic DB integration.

Dockerfile

@@ -0,0 +1,16 @@
+FROM node:18-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm install
+
+COPY . .
+
+# Expose port 3000
+EXPOSE 3000
+
+# Create uploads directory
+RUN mkdir -p uploads
+
+CMD ["node", "server.js"]