Force anon key on getHistory and expose errors visually

src/lib/supabase.ts

@@ -133,16 +133,36 @@ export async function getHistory(token?: string): Promise<HistoryEntry[]> {
         cache: 'no-store',
         headers: {
           'apikey': SUPABASE_KEY,
-          'Authorization': `Bearer ${token || SUPABASE_KEY}`
+          // Try using only the ANON key just in case RLS or token expiry is failing silently
+          'Authorization': `Bearer ${SUPABASE_KEY}`
         }
       }
     );
 
-    if (!response.ok) return [];
+    if (!response.ok) {
+      const err = await response.text();
+      return [{
+        id: 'error-' + Date.now(),
+        product_id: 'ERROR',
+        article_name: `Failed: ${response.status} ${err}`,
+        old_data: [],
+        new_data: [],
+        changed_at: new Date().toISOString(),
+        changed_by: 'system'
+      }];
+    }
     return await response.json();
-  } catch (error) {
-    console.error('Error fetching history from Supabase:', error);
-    return [];
+  } catch (error: any) {
+    console.error('Error fetching history:', error);
+    return [{
+        id: 'error-' + Date.now(),
+        product_id: 'EXCEPTION',
+        article_name: `Message: ${error.message}`,
+        old_data: [],
+        new_data: [],
+        changed_at: new Date().toISOString(),
+        changed_by: 'system'
+    }];
   }
 }