feat: update dataset and dataset_entry tables to use unixepoch for timestamps and add new dataset_entry migration

drizzle/0001_friendly_tana_nile.sql

@@ -0,0 +1,29 @@
+PRAGMA foreign_keys=OFF;--> statement-breakpoint
+CREATE TABLE `__new_dataset_entry` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`external_id` text NOT NULL,
+	`speaker_id` text NOT NULL,
+	`model_name` text NOT NULL,
+	`dataset_id` integer NOT NULL,
+	`file_name` text NOT NULL,
+	`dialect` text NOT NULL,
+	`iteration` integer NOT NULL,
+	`created_at` integer DEFAULT (unixepoch()) NOT NULL,
+	`updated_at` integer DEFAULT (unixepoch()) NOT NULL,
+	FOREIGN KEY (`dataset_id`) REFERENCES `dataset`(`id`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+INSERT INTO `__new_dataset_entry`("id", "external_id", "speaker_id", "model_name", "dataset_id", "file_name", "dialect", "iteration", "created_at", "updated_at") SELECT "id", "external_id", "speaker_id", "model_name", "dataset_id", "file_name", "dialect", "iteration", "created_at", "updated_at" FROM `dataset_entry`;--> statement-breakpoint
+DROP TABLE `dataset_entry`;--> statement-breakpoint
+ALTER TABLE `__new_dataset_entry` RENAME TO `dataset_entry`;--> statement-breakpoint
+PRAGMA foreign_keys=ON;--> statement-breakpoint
+CREATE TABLE `__new_dataset` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`name` text NOT NULL,
+	`created_at` integer DEFAULT (unixepoch()) NOT NULL,
+	`updated_at` integer DEFAULT (unixepoch()) NOT NULL
+);
+--> statement-breakpoint
+INSERT INTO `__new_dataset`("id", "name", "created_at", "updated_at") SELECT "id", "name", "created_at", "updated_at" FROM `dataset`;--> statement-breakpoint
+DROP TABLE `dataset`;--> statement-breakpoint
+ALTER TABLE `__new_dataset` RENAME TO `dataset`;