feat: enhance purchase intentions with chat integration and offer tracking

- Added MongoDB chat/message integration for seller responses
- Improved seller response validation and default messaging
- Integrated automatic chat creation/update when responding to intentions
- Added highest custom offer fields to listing queries and models
- Enhanced listing data with top offer information for buyers

lib/hooks/use-purchase-intentions.ts

@@ -43,6 +43,9 @@ export interface PurchaseIntention {
   buyer_id: number;
   payment_method: string;
   payment_method_change_count: number;
+  custom_offer_amount: number | string | null;
+  custom_offer_currency: string | null;
+  custom_offer_created_at: Date | string | null;
   chat_id: string | null;
   status: PurchaseIntentionStatus;
   buyer_message: string | null;
@@ -61,17 +64,12 @@ interface PurchaseIntentionsResponse {
   count: number;
 }
 
-/**
- * Hook para buscar intenções de compra do usuário autenticado
- * Atualiza automaticamente a cada 30 segundos
- */
-export function useMyPurchaseIntentions(status?: PurchaseIntentionStatus) {
+export function useMyPurchaseIntentions() {
   const queryParams = new URLSearchParams();
-  if (status) queryParams.set("status", status);
-  queryParams.set("limit", "100"); // Limite alto para mostrar todas
+  queryParams.set("limit", "100");
 
   const { data, isLoading, error, refetch } = useQuery<PurchaseIntentionsResponse>({
-    queryKey: ["my-purchase-intentions", status],
+    queryKey: ["my-purchase-intentions"],
     queryFn: async () => {
       const res = await fetch(`/api/purchase-intentions/my?${queryParams.toString()}`);
       if (!res.ok) {
@@ -89,8 +87,16 @@ export function useMyPurchaseIntentions(status?: PurchaseIntentionStatus) {
     enabled: true, // Sempre habilitado (autenticação é verificada no backend)
   });
 
+  const normalizedIntentions = (data?.intentions || []).map((intention) => ({
+    ...intention,
+    custom_offer_amount:
+      intention.custom_offer_amount !== null && intention.custom_offer_amount !== undefined
+        ? Number(intention.custom_offer_amount)
+        : null,
+  }));
+
   return {
-    intentions: data?.intentions || [],
+    intentions: normalizedIntentions,
     count: data?.count || 0,
     isLoading,
     error,