feat: give plugins their own tables, migrations and sync entities

drizzle/sqlite/0024_public_hemingway.sql

@@ -0,0 +1,10 @@
+CREATE TABLE `plugin_migrations` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`plugin_id` text NOT NULL,
+	`migration_id` text NOT NULL,
+	`checksum` text NOT NULL,
+	`applied_at` text DEFAULT CURRENT_TIMESTAMP NOT NULL,
+	FOREIGN KEY (`plugin_id`) REFERENCES `plugins`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+CREATE UNIQUE INDEX `idx_plugin_migrations_plugin_migration` ON `plugin_migrations` (`plugin_id`,`migration_id`);