server.js

const express = require('express');
const path = require('path');

const app = express();
const PORT = process.env.PORT || 3000;

// Vendor libs (three.js) — versioned by npm, safe to cache forever
app.use('/vendor', express.static(path.join(__dirname, 'node_modules/three/build'), {
    maxAge: '1y',
    immutable: true,
}));

// Public assets — cache for 1 hour with revalidation support
app.use(express.static(path.join(__dirname, 'public'), {
    maxAge: '1h',
    etag: true,
    lastModified: true,
}));

app.get('/contact', (req, res) => {
    res.sendFile(path.join(__dirname, 'public', 'contact.html'));
});

app.get('/devs', (req, res) => {
    res.sendFile(path.join(__dirname, 'public', 'devs.html'));
});

app.get('/tos', (req, res) => {
    res.sendFile(path.join(__dirname, 'public', 'tos.html'));
});

app.get('/policy', (req, res) => {
    res.sendFile(path.join(__dirname, 'public', 'policy.html'));
});

app.get('/.well-known/matrix/server', (req, res) => {
    res.json({ "m.server": "matrix.cns-studios.com:443" });
});

app.get('/.well-known/matrix/client', (req, res) => {
    res.set('Access-Control-Allow-Origin', '*');
    res.json({ "m.homeserver": { "base_url": "https://matrix.cns-studios.com" } });
});

app.listen(PORT, () => {
    console.log(`Server running at http://localhost:${PORT}`);
});