Update server.js

server.js

@@ -175,7 +175,7 @@ app.get('/api/chat/history', (req, res) => {
 // --- Gemini Proxy ---
 app.post('/api/gemini/generate', async (req, res) => {
   try {
-    const apiKey = process.env.API_KEY;
+    const apiKey = process.env.GEMINI_API_KEY;
     if (!apiKey) return res.status(500).json({ error: 'API Key missing' });
     
     const { model, contents, config, saveToMemory } = req.body;