feat: add prototype-based annotation view with single-choice rating

drizzle/0007_light_spiral.sql

@@ -0,0 +1,9 @@
+CREATE TABLE IF NOT EXISTS `annotation` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`dataset_entry_id` integer NOT NULL,
+	`user_id` text NOT NULL,
+	`rating` integer NOT NULL,
+	`dialect_label` text NOT NULL,
+	`created_at` integer DEFAULT (unixepoch()) NOT NULL,
+	FOREIGN KEY (`dataset_entry_id`) REFERENCES `dataset_entry`(`id`) ON UPDATE no action ON DELETE no action
+);