feat(db): ownership columns and lesson_subscriptions table

packages/backend/drizzle/0002_youthful_storm.sql

@@ -0,0 +1,22 @@
+CREATE TABLE `lesson_subscriptions` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`user_id` integer NOT NULL,
+	`lesson_id` integer NOT NULL,
+	`created_at` integer DEFAULT (unixepoch()) NOT NULL,
+	FOREIGN KEY (`user_id`) REFERENCES `users`(`id`) ON UPDATE no action ON DELETE cascade,
+	FOREIGN KEY (`lesson_id`) REFERENCES `lessons`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+ALTER TABLE `card_progress` ADD `user_id` integer REFERENCES users(id);--> statement-breakpoint
+ALTER TABLE `lessons` ADD `owner_id` integer REFERENCES users(id);--> statement-breakpoint
+ALTER TABLE `lessons` ADD `visibility` text DEFAULT 'private' NOT NULL;--> statement-breakpoint
+ALTER TABLE `lessons` ADD `is_curated` integer DEFAULT false NOT NULL;--> statement-breakpoint
+ALTER TABLE `lessons` ADD `source_lesson_id` integer REFERENCES lessons(id);--> statement-breakpoint
+ALTER TABLE `sessions` ADD `user_id` integer REFERENCES users(id);--> statement-breakpoint
+CREATE INDEX `lesson_subscriptions_user_idx` ON `lesson_subscriptions` (`user_id`);--> statement-breakpoint
+CREATE INDEX `lesson_subscriptions_lesson_idx` ON `lesson_subscriptions` (`lesson_id`);--> statement-breakpoint
+CREATE UNIQUE INDEX `lesson_subscriptions_user_lesson_unique` ON `lesson_subscriptions` (`user_id`,`lesson_id`);--> statement-breakpoint
+CREATE INDEX `card_progress_user_idx` ON `card_progress` (`user_id`,`next_due_at`);--> statement-breakpoint
+CREATE INDEX `lessons_owner_idx` ON `lessons` (`owner_id`);--> statement-breakpoint
+CREATE INDEX `lessons_visibility_idx` ON `lessons` (`visibility`,`is_curated`);--> statement-breakpoint
+CREATE INDEX `sessions_user_idx` ON `sessions` (`user_id`,`status`);