fix: firmware upload failure

index.js

@@ -645,7 +645,21 @@ app.post('/api/node/update', async (req, res) => {
     
     try {
       const updateResult = await nodeClient.updateFirmware(uploadedFile.data, uploadedFile.name);
-      console.log(`Firmware upload to SPORE device ${nodeIp} completed successfully:`, updateResult);
+      console.log(`Firmware upload to SPORE device ${nodeIp} completed:`, updateResult);
+      
+      // Check if the SPORE device reported a failure
+      if (updateResult && updateResult.status === 'FAIL') {
+        console.error(`SPORE device ${nodeIp} reported firmware update failure:`, updateResult.message);
+        return res.status(400).json({
+          success: false,
+          error: 'Firmware update failed',
+          message: updateResult.message || 'Firmware update failed on device',
+          nodeIp: nodeIp,
+          fileSize: uploadedFile.data.length,
+          filename: uploadedFile.name,
+          result: updateResult
+        });
+      }
       
       res.json({
         success: true,