feat: implement market page with QueryProvider and dynamic listings

- wrap root layout with QueryProvider for React Query
- replace market UnderConstruction placeholder with MarketClient and real data fetching
- implement search, pagination, and sort via search params using getActiveListings
- add necessary client components and queries
- update dependencies (e.g., prisma, pkg-types)

lib/db/queries/notifications.ts

@@ -0,0 +1,150 @@
+/**
+ * Queries de notificações
+ * CRUD completo para a tabela notifications
+ */
+
+import { query } from "../index";
+
+export interface Notification {
+  notification_id: number;
+  user_id: number;
+  notification_type: "bid" | "sale" | "purchase" | "escrow" | "dispute" | "system";
+  title: string;
+  message: string;
+  related_id: number | null;
+  is_read: boolean;
+  send_whatsapp: boolean;
+  whatsapp_sent: boolean;
+  created_at: Date;
+}
+
+export interface CreateNotificationData {
+  user_id: number;
+  notification_type: Notification["notification_type"];
+  title: string;
+  message: string;
+  related_id?: number | null;
+  send_whatsapp?: boolean;
+}
+
+/**
+ * Cria uma nova notificação
+ */
+export async function createNotification(
+  data: CreateNotificationData
+): Promise<Notification> {
+  const result = await query<Notification>(
+    `
+    INSERT INTO notifications (user_id, notification_type, title, message, related_id, send_whatsapp)
+    VALUES ($1, $2, $3, $4, $5, $6)
+    RETURNING *
+    `,
+    [
+      data.user_id,
+      data.notification_type,
+      data.title,
+      data.message,
+      data.related_id || null,
+      data.send_whatsapp || false,
+    ]
+  );
+
+  return result.rows[0];
+}
+
+/**
+ * Busca notificações de um usuário
+ */
+export async function getUserNotifications(
+  userId: number,
+  filters: { is_read?: boolean; limit?: number } = {}
+): Promise<Notification[]> {
+  const { is_read, limit = 50 } = filters;
+
+  const conditions: string[] = [`user_id = $1`];
+  const params: any[] = [userId];
+  let paramIndex = 2;
+
+  if (is_read !== undefined) {
+    conditions.push(`is_read = $${paramIndex}`);
+    params.push(is_read);
+    paramIndex++;
+  }
+
+  const whereClause = conditions.length > 0 ? `WHERE ${conditions.join(" AND ")}` : "";
+
+  const result = await query<Notification>(
+    `
+    SELECT * FROM notifications
+    ${whereClause}
+    ORDER BY created_at DESC
+    LIMIT $${paramIndex}
+    `,
+    [...params, limit]
+  );
+
+  return result.rows;
+}
+
+/**
+ * Conta notificações não lidas de um usuário
+ */
+export async function getUnreadCount(userId: number): Promise<number> {
+  const result = await query<{ count: string }>(
+    `
+    SELECT COUNT(*) as count FROM notifications
+    WHERE user_id = $1 AND is_read = FALSE
+    `,
+    [userId]
+  );
+
+  return parseInt(result.rows[0].count, 10);
+}
+
+/**
+ * Marca notificação como lida
+ */
+export async function markAsRead(notificationId: number, userId: number): Promise<boolean> {
+  const result = await query(
+    `
+    UPDATE notifications
+    SET is_read = TRUE
+    WHERE notification_id = $1 AND user_id = $2
+    `,
+    [notificationId, userId]
+  );
+
+  return result.rowCount > 0;
+}
+
+/**
+ * Marca todas as notificações de um usuário como lidas
+ */
+export async function markAllAsRead(userId: number): Promise<number> {
+  const result = await query(
+    `
+    UPDATE notifications
+    SET is_read = TRUE
+    WHERE user_id = $1 AND is_read = FALSE
+    `,
+    [userId]
+  );
+
+  return result.rowCount || 0;
+}
+
+/**
+ * Remove notificação
+ */
+export async function deleteNotification(notificationId: number, userId: number): Promise<boolean> {
+  const result = await query(
+    `
+    DELETE FROM notifications
+    WHERE notification_id = $1 AND user_id = $2
+    `,
+    [notificationId, userId]
+  );
+
+  return result.rowCount > 0;
+}
+