Added foundation of a simple mock-api

mock-api/dafa-web/scripts/generate-api.js

@@ -0,0 +1,8 @@
+import fs from 'fs';
+import participants from './participants.js';
+
+const apiData = {
+  participants: participants.generate(50),
+};
+
+fs.writeFileSync('api.json', JSON.stringify(apiData, null, '\t'));