feat: Add pedigree routes for COI calculation, direct relation checks, and ancestral/descendant trees.

server/test_express.js

@@ -0,0 +1,8 @@
+const express = require('express');
+const router = express.Router();
+
+router.post(['/a', '/b'], (req, res) => {
+  res.send('ok');
+});
+
+console.log('Started successfully');