add directory for common assets

common/prisma/migrations/20240523084115_create_positions_table/migration.sql

@@ -0,0 +1,22 @@
+-- CreateTable
+CREATE TABLE `positions` (
+    `id` BIGINT NOT NULL AUTO_INCREMENT,
+    `node_id` BIGINT NOT NULL,
+    `to` BIGINT NOT NULL,
+    `from` BIGINT NOT NULL,
+    `channel` INTEGER NULL,
+    `packet_id` BIGINT NULL,
+    `channel_id` VARCHAR(191) NULL,
+    `gateway_id` BIGINT NULL,
+    `latitude` INTEGER NULL,
+    `longitude` INTEGER NULL,
+    `altitude` INTEGER NULL,
+    `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updated_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    INDEX `positions_created_at_idx`(`created_at`),
+    INDEX `positions_updated_at_idx`(`updated_at`),
+    INDEX `positions_node_id_idx`(`node_id`),
+    INDEX `positions_packet_id_idx`(`packet_id`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;