AI tweaks and make column name matching case insensitive

inventory-server/src/routes/ai-validation.js

@@ -33,15 +33,19 @@ Respond in the following JSON format:
 router.post('/validate', async (req, res) => {
   try {
     const { products } = req.body;
+    console.log('🔍 Received products for validation:', JSON.stringify(products, null, 2));
 
     if (!Array.isArray(products)) {
+      console.error('❌ Invalid input: products is not an array');
       return res.status(400).json({ error: 'Products must be an array' });
     }
 
     const prompt = createValidationPrompt(products);
+    console.log('📝 Generated prompt:', prompt);
 
+    console.log('🤖 Sending request to OpenAI...');
     const completion = await openai.chat.completions.create({
-      model: "gpt-4-turbo-preview",
+      model: "gpt-4o-mini",
       messages: [
         {
           role: "system",
@@ -52,19 +56,50 @@ router.post('/validate', async (req, res) => {
           content: prompt
         }
       ],
-      temperature: 0.3, // Lower temperature for more consistent results
+      temperature: 0.3,
       max_tokens: 4000,
       response_format: { type: "json_object" }
     });
 
-    const aiResponse = JSON.parse(completion.choices[0].message.content);
+    console.log('✅ Received response from OpenAI');
+    const rawResponse = completion.choices[0].message.content;
+    console.log('📄 Raw AI response:', rawResponse);
+
+    const aiResponse = JSON.parse(rawResponse);
+    console.log('🔄 Parsed AI response:', JSON.stringify(aiResponse, null, 2));
+
+    // Compare original and corrected data
+    if (aiResponse.correctedData) {
+      console.log('📊 Changes summary:');
+      products.forEach((original, index) => {
+        const corrected = aiResponse.correctedData[index];
+        if (corrected) {
+          const changes = Object.keys(corrected).filter(key => 
+            JSON.stringify(original[key]) !== JSON.stringify(corrected[key])
+          );
+          if (changes.length > 0) {
+            console.log(`\nProduct ${index + 1} changes:`);
+            changes.forEach(key => {
+              console.log(`  ${key}:`);
+              console.log(`    - Original: ${JSON.stringify(original[key])}`);
+              console.log(`    - Corrected: ${JSON.stringify(corrected[key])}`);
+            });
+          }
+        }
+      });
+    }
 
     res.json({
       success: true,
       ...aiResponse
     });
   } catch (error) {
-    console.error('AI Validation Error:', error);
+    console.error('❌ AI Validation Error:', error);
+    console.error('Error details:', {
+      name: error.name,
+      message: error.message,
+      stack: error.stack
+    });
     res.status(500).json({
       success: false,
       error: error.message || 'Error during AI validation'