added invoices and status in cockpit, created info button for contract status types

backend/prisma/migrations/20260207220248_add_invoice_model/migration.sql

@@ -0,0 +1,17 @@
+-- CreateTable
+CREATE TABLE `Invoice` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `energyContractDetailsId` INTEGER NOT NULL,
+    `invoiceDate` DATETIME(3) NOT NULL,
+    `invoiceType` ENUM('INTERIM', 'FINAL', 'NOT_AVAILABLE') NOT NULL,
+    `documentPath` VARCHAR(191) NULL,
+    `notes` VARCHAR(191) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    INDEX `Invoice_energyContractDetailsId_idx`(`energyContractDetailsId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `Invoice` ADD CONSTRAINT `Invoice_energyContractDetailsId_fkey` FOREIGN KEY (`energyContractDetailsId`) REFERENCES `EnergyContractDetails`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;