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.

server.js

@@ -0,0 +1,51 @@
+const express = require('express');
+const cors = require('cors');
+const path = require('path');
+const session = require('express-session');
+require('dotenv').config();
+
+const { initUserTable } = require('./db/connection');
+const authRoutes = require('./routes/auth');
+const fileRoutes = require('./routes/files');
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+
+// Initialize DB
+initUserTable();
+
+// Middleware
+app.use(cors());
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+
+// Session
+app.use(session({
+    secret: process.env.SESSION_SECRET || 'supersecretkey',
+    resave: false,
+    saveUninitialized: false,
+    cookie: { secure: false } // Set to true if using HTTPS
+}));
+
+// Auth Middleware
+const requireAuth = (req, res, next) => {
+    if (req.session.user) {
+        next();
+    } else {
+        res.status(401).json({ error: 'Unauthorized' });
+    }
+};
+
+// Routes
+app.use('/api/auth', authRoutes);
+app.use('/api', requireAuth, fileRoutes);
+
+// Static files (public) - protect if needed, but for now let's allow loading the app
+// We can protect specific assets if we want, but the API is protected.
+// Actually, if we want to force login, we can serve a login page or handle it in specific separate file.
+// The main `index.html` handles the login UI, so it should be public.
+app.use(express.static('public'));
+
+app.listen(PORT, () => {
+    console.log(`Server running on port ${PORT}`);
+});