fix: use POST with upsert instead of PATCH to handle new products

src/lib/supabase.ts

@@ -36,14 +36,14 @@ export async function getAllSyncedRows(): Promise<Record<string, SyncedRow>> {
 export async function saveRowToSupabase(articleNo: string, rowData: ExcelRow): Promise<boolean> {
   try {
     const response = await fetch(
-      `${SUPABASE_URL}/rest/v1/products?product_id=eq.${encodeURIComponent(articleNo)}`,
+      `${SUPABASE_URL}/rest/v1/products`,
       {
-        method: 'PATCH',
+        method: 'POST',
         headers: {
           'Content-Type': 'application/json',
           'apikey': SUPABASE_KEY,
           'Authorization': `Bearer ${SUPABASE_KEY}`,
-          'Prefer': 'return=minimal'
+          'Prefer': 'resolution=merge-duplicates'
         },
         body: JSON.stringify({
           product_id: articleNo,
@@ -54,7 +54,7 @@ export async function saveRowToSupabase(articleNo: string, rowData: ExcelRow): P
       }
     );
 
-    return response.ok;
+    return response.ok || response.status === 201;
   } catch (error) {
     console.error('Error saving to Supabase:', error);
     return false;