fix: prevent cleanAndParseJson from converting single standard object into an array

services/aiService.ts

@@ -675,7 +675,18 @@ Regras Cruciais:
       resultJson = data.choices[0].message.content;
     }
 
-    const parsed = cleanAndParseJson(resultJson);
+    let cleanedString = resultJson.trim();
+    const jsonMatch = cleanedString.match(/```(?:json)?\s*([\s\S]*?)\s*```/i);
+    if (jsonMatch) cleanedString = jsonMatch[1].trim();
+    else {
+      const startIndex = cleanedString.indexOf('{');
+      const endIndex = cleanedString.lastIndexOf('}');
+      if (startIndex !== -1 && endIndex !== -1) {
+        cleanedString = cleanedString.substring(startIndex, endIndex + 1);
+      }
+    }
+    
+    const parsed = JSON.parse(cleanedString);
     return parsed;
   } catch (error) {
     console.error("Erro no buildStandardWithAI:", error);