feat(statistics): implement top alert stocks, top last sales, top supplier debts, and top selling products endpoints with SQL queries

prisma/migrations/20260102214244_init/migration.sql

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+/*
+  Warnings:
+
+  - You are about to drop the `SalesInvoicePayment` table. If the table is not empty, all the data it contains will be lost.
+
+*/
+-- DropForeignKey
+ALTER TABLE `SalesInvoicePayment` DROP FOREIGN KEY `SalesInvoicePayment_invoiceId_fkey`;
+
+-- DropTable
+DROP TABLE `SalesInvoicePayment`;
+
+-- CreateTable
+CREATE TABLE `Sales_Invoice_Payments` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `invoiceId` INTEGER NOT NULL,
+    `amount` DECIMAL(15, 2) NOT NULL,
+    `paymentMethod` ENUM('CASH', 'CARD', 'BANK', 'CHECK', 'OTHER') NOT NULL,
+    `paidAt` DATETIME(3) NOT NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    INDEX `Sales_Invoice_Payments_invoiceId_idx`(`invoiceId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `Sales_Invoice_Payments` ADD CONSTRAINT `Sales_Invoice_Payments_invoiceId_fkey` FOREIGN KEY (`invoiceId`) REFERENCES `Sales_Invoices`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;