add directory for common assets

common/prisma/migrations/20240312222245_create_neighbour_info_table/migration.sql

@@ -0,0 +1,13 @@
+-- CreateTable
+CREATE TABLE `neighbour_infos` (
+    `id` BIGINT NOT NULL AUTO_INCREMENT,
+    `node_id` BIGINT NOT NULL,
+    `node_broadcast_interval_secs` INTEGER NOT NULL,
+    `neighbours` JSON NOT NULL,
+    `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updated_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    INDEX `neighbour_infos_created_at_idx`(`created_at`),
+    INDEX `neighbour_infos_updated_at_idx`(`updated_at`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;