chore(db): finish Prisma cutover to Drizzle Kit tooling

Move CMS SQL to drizzle/migrations, drop prisma packages/schema, wire drizzle-kit scripts, and regenerate schema names from src/db/schema.ts.

Co-authored-by: Cursor <[email protected]>

drizzle/migrations/0019_add_website_login_logs.sql

@@ -0,0 +1,9 @@
+CREATE TABLE IF NOT EXISTS `website_login_logs` (
+  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `user_id` INT NOT NULL,
+  `ip` VARCHAR(45) NOT NULL,
+  `user_agent` VARCHAR(512) DEFAULT NULL,
+  `created_at` TIMESTAMP NULL DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  KEY `website_login_logs_user_id_index` (`user_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;