feat: add GET /api/votes endpoint with filtering and pagination

Made-with: Cursor

backend/routes/sessions.js

@@ -254,6 +254,40 @@ router.get('/:id/games', (req, res) => {
   }
 });
 
+// Get vote breakdown for a session
+router.get('/:id/votes', (req, res) => {
+  try {
+    const session = db.prepare('SELECT id FROM sessions WHERE id = ?').get(req.params.id);
+
+    if (!session) {
+      return res.status(404).json({ error: 'Session not found' });
+    }
+
+    const votes = db.prepare(`
+      SELECT
+        lv.game_id,
+        g.title,
+        g.pack_name,
+        SUM(CASE WHEN lv.vote_type = 1 THEN 1 ELSE 0 END) AS upvotes,
+        SUM(CASE WHEN lv.vote_type = -1 THEN 1 ELSE 0 END) AS downvotes,
+        SUM(lv.vote_type) AS net_score,
+        COUNT(*) AS total_votes
+      FROM live_votes lv
+      JOIN games g ON lv.game_id = g.id
+      WHERE lv.session_id = ?
+      GROUP BY lv.game_id
+      ORDER BY net_score DESC
+    `).all(req.params.id);
+
+    res.json({
+      session_id: parseInt(req.params.id),
+      votes,
+    });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
 // Add game to session (admin only)
 router.post('/:id/games', authenticateToken, (req, res) => {
   try {