Merge pull request 'fix: Trial Pairing Simulator — correct SQLite string quoting for sex filter' (#43) from fix/trial-pairing-sex-quote into master

Reviewed-on: #43

server/routes/pedigree.js

@@ -161,8 +161,9 @@ router.post('/trial-pairing', (req, res) => {
     }
     
     const db = getDatabase();
-    const sire = db.prepare('SELECT * FROM dogs WHERE id = ? AND sex = "male"').get(sire_id);
-    const dam = db.prepare('SELECT * FROM dogs WHERE id = ? AND sex = "female"').get(dam_id);
+    // FIX: use single quotes for string literals — SQLite treats double quotes as identifiers
+    const sire = db.prepare("SELECT * FROM dogs WHERE id = ? AND sex = 'male'").get(sire_id);
+    const dam  = db.prepare("SELECT * FROM dogs WHERE id = ? AND sex = 'female'").get(dam_id);
     
     if (!sire || !dam) {
       return res.status(404).json({ error: 'Invalid sire or dam' });