Restructure backend into modular API layers with admin/organizador/invitados routes, add role-based middleware, flatten module models, and update build scripts

packages/server/scripts/flatten-models.js

@@ -0,0 +1,33 @@
+const fs = require('fs');
+const path = require('path');
+
+const base = path.resolve(__dirname, '../src/modules');
+const mapping = {
+  guests: 'guest.model.ts',
+  gifts: 'gift.model.ts',
+  todos: 'todo.model.ts',
+};
+
+for (const mod of Object.keys(mapping)) {
+  const modDir = path.join(base, mod);
+  const modelDir = path.join(modDir, 'model');
+  const src = path.join(modelDir, mapping[mod]);
+  const dst = path.join(modDir, 'model.ts');
+
+  if (fs.existsSync(src)) {
+    console.log(`Moving ${src} -> ${dst}`);
+    fs.renameSync(src, dst);
+  }
+
+  if (fs.existsSync(modelDir)) {
+    try {
+      const files = fs.readdirSync(modelDir);
+      if (files.length === 0) {
+        console.log(`Removing empty directory ${modelDir}`);
+        fs.rmdirSync(modelDir);
+      }
+    } catch (e) {
+      console.warn(`Failed to clean model directory ${modelDir}:`, e.message);
+    }
+  }
+}