Initial commit — OFApp client + server

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/settings.js

@@ -0,0 +1,21 @@
+import { Router } from 'express';
+import { getAllSettings, setSetting } from './db.js';
+
+const router = Router();
+
+// GET /api/settings
+router.get('/api/settings', (req, res) => {
+  const settings = getAllSettings();
+  res.json(settings);
+});
+
+// PUT /api/settings
+router.put('/api/settings', (req, res) => {
+  const updates = req.body;
+  for (const [key, value] of Object.entries(updates)) {
+    setSetting(key, String(value));
+  }
+  res.json(getAllSettings());
+});
+
+export default router;